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Finding the Fourth Proportional to 472,304.50, 651,761.13 and 257,439.94

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Solution

The fourth proportional to 472,304.50, 651,761.13 and 257,439.94 is: 355,256.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,304.50 : 651,761.13 = 257,439.94 : x
  2. Step 2: Convert to fraction form
    472,304.50/651,761.13 = 257,439.94/x
  3. Step 3: Cross multiply
    472,304.50x = 651,761.13 × 257,439.94
  4. Step 4: Simplify right side
    472,304.50x = 167,789,346,201.53
  5. Step 5: Solve for x
    x = 167,789,346,201.53/472,304.50
  6. Step 6: Final answer
    x = 355,256.72

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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.