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Finding the Fourth Proportional to 517,205.54, 775,816.61 and 162,222.63

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Solution

The fourth proportional to 517,205.54, 775,816.61 and 162,222.63 is: 243,336.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,205.54 : 775,816.61 = 162,222.63 : x
  2. Step 2: Convert to fraction form
    517,205.54/775,816.61 = 162,222.63/x
  3. Step 3: Cross multiply
    517,205.54x = 775,816.61 × 162,222.63
  4. Step 4: Simplify right side
    517,205.54x = 125,855,010,060.77
  5. Step 5: Solve for x
    x = 125,855,010,060.77/517,205.54
  6. Step 6: Final answer
    x = 243,336.55

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.