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Finding the Fourth Proportional to 461,032.38, 636,221.94 and 257,085.72

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Solution

The fourth proportional to 461,032.38, 636,221.94 and 257,085.72 is: 354,776.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,032.38 : 636,221.94 = 257,085.72 : x
  2. Step 2: Convert to fraction form
    461,032.38/636,221.94 = 257,085.72/x
  3. Step 3: Cross multiply
    461,032.38x = 636,221.94 × 257,085.72
  4. Step 4: Simplify right side
    461,032.38x = 163,563,575,524.70
  5. Step 5: Solve for x
    x = 163,563,575,524.70/461,032.38
  6. Step 6: Final answer
    x = 354,776.76

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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.