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Finding the Fourth Proportional to 461,513.61, 636,887.42 and 257,562.36

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Solution

The fourth proportional to 461,513.61, 636,887.42 and 257,562.36 is: 355,435.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,513.61 : 636,887.42 = 257,562.36 : x
  2. Step 2: Convert to fraction form
    461,513.61/636,887.42 = 257,562.36/x
  3. Step 3: Cross multiply
    461,513.61x = 636,887.42 × 257,562.36
  4. Step 4: Simplify right side
    461,513.61x = 164,038,225,661.70
  5. Step 5: Solve for x
    x = 164,038,225,661.70/461,513.61
  6. Step 6: Final answer
    x = 355,435.29

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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.