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Finding the Fourth Proportional to 474,877.31, 655,325.71 and 257,081.11

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Solution

The fourth proportional to 474,877.31, 655,325.71 and 257,081.11 is: 354,769.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,877.31 : 655,325.71 = 257,081.11 : x
  2. Step 2: Convert to fraction form
    474,877.31/655,325.71 = 257,081.11/x
  3. Step 3: Cross multiply
    474,877.31x = 655,325.71 × 257,081.11
  4. Step 4: Simplify right side
    474,877.31x = 168,471,858,657.32
  5. Step 5: Solve for x
    x = 168,471,858,657.32/474,877.31
  6. Step 6: Final answer
    x = 354,769.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.