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Finding the Fourth Proportional to 461,375.07, 636,300 and 300,171.30

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Solution

The fourth proportional to 461,375.07, 636,300 and 300,171.30 is: 413,977.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,375.07 : 636,300 = 300,171.30 : x
  2. Step 2: Convert to fraction form
    461,375.07/636,300 = 300,171.30/x
  3. Step 3: Cross multiply
    461,375.07x = 636,300 × 300,171.30
  4. Step 4: Simplify right side
    461,375.07x = 190,998,998,190
  5. Step 5: Solve for x
    x = 190,998,998,190/461,375.07
  6. Step 6: Final answer
    x = 413,977.72

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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.