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Finding the Fourth Proportional to 417,487.76, 576,134.36 and 226,502.72

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Solution

The fourth proportional to 417,487.76, 576,134.36 and 226,502.72 is: 312,574.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,487.76 : 576,134.36 = 226,502.72 : x
  2. Step 2: Convert to fraction form
    417,487.76/576,134.36 = 226,502.72/x
  3. Step 3: Cross multiply
    417,487.76x = 576,134.36 × 226,502.72
  4. Step 4: Simplify right side
    417,487.76x = 130,495,999,625.46
  5. Step 5: Solve for x
    x = 130,495,999,625.46/417,487.76
  6. Step 6: Final answer
    x = 312,574.43

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1.5x scale

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.