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Finding the Fourth Proportional to 461,486.63, 636,850.28 and 257,535.38

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Solution

The fourth proportional to 461,486.63, 636,850.28 and 257,535.38 is: 355,398.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,486.63 : 636,850.28 = 257,535.38 : x
  2. Step 2: Convert to fraction form
    461,486.63/636,850.28 = 257,535.38/x
  3. Step 3: Cross multiply
    461,486.63x = 636,850.28 × 257,535.38
  4. Step 4: Simplify right side
    461,486.63x = 164,011,481,098.87
  5. Step 5: Solve for x
    x = 164,011,481,098.87/461,486.63
  6. Step 6: Final answer
    x = 355,398.12

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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.