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Finding the Fourth Proportional to 160,208.76, 240,349.59 and 85,289.43

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Solution

The fourth proportional to 160,208.76, 240,349.59 and 85,289.43 is: 127,953.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,208.76 : 240,349.59 = 85,289.43 : x
  2. Step 2: Convert to fraction form
    160,208.76/240,349.59 = 85,289.43/x
  3. Step 3: Cross multiply
    160,208.76x = 240,349.59 × 85,289.43
  4. Step 4: Simplify right side
    160,208.76x = 20,499,279,531.83
  5. Step 5: Solve for x
    x = 20,499,279,531.83/160,208.76
  6. Step 6: Final answer
    x = 127,953.55

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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.