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Finding the Fourth Proportional to 461,146.34, 636,273.60 and 279,854.22

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Solution

The fourth proportional to 461,146.34, 636,273.60 and 279,854.22 is: 386,133.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,146.34 : 636,273.60 = 279,854.22 : x
  2. Step 2: Convert to fraction form
    461,146.34/636,273.60 = 279,854.22/x
  3. Step 3: Cross multiply
    461,146.34x = 636,273.60 × 279,854.22
  4. Step 4: Simplify right side
    461,146.34x = 178,063,852,034.59
  5. Step 5: Solve for x
    x = 178,063,852,034.59/461,146.34
  6. Step 6: Final answer
    x = 386,133.07

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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.