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Finding the Fourth Proportional to 461,380.86, 636,705.90 and 270,394.20

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Solution

The fourth proportional to 461,380.86, 636,705.90 and 270,394.20 is: 373,144.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,380.86 : 636,705.90 = 270,394.20 : x
  2. Step 2: Convert to fraction form
    461,380.86/636,705.90 = 270,394.20/x
  3. Step 3: Cross multiply
    461,380.86x = 636,705.90 × 270,394.20
  4. Step 4: Simplify right side
    461,380.86x = 172,161,582,465.78
  5. Step 5: Solve for x
    x = 172,161,582,465.78/461,380.86
  6. Step 6: Final answer
    x = 373,144.18

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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.