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Finding the Fourth Proportional to 517,305.76, 775,991.43 and 162,333.79

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Solution

The fourth proportional to 517,305.76, 775,991.43 and 162,333.79 is: 243,510.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,305.76 : 775,991.43 = 162,333.79 : x
  2. Step 2: Convert to fraction form
    517,305.76/775,991.43 = 162,333.79/x
  3. Step 3: Cross multiply
    517,305.76x = 775,991.43 × 162,333.79
  4. Step 4: Simplify right side
    517,305.76x = 125,969,629,839.42
  5. Step 5: Solve for x
    x = 125,969,629,839.42/517,305.76
  6. Step 6: Final answer
    x = 243,510.97

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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.