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Finding the Fourth Proportional to 445,775.90, 615,170.74 and 254,793.40

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Solution

The fourth proportional to 445,775.90, 615,170.74 and 254,793.40 is: 351,614.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,775.90 : 615,170.74 = 254,793.40 : x
  2. Step 2: Convert to fraction form
    445,775.90/615,170.74 = 254,793.40/x
  3. Step 3: Cross multiply
    445,775.90x = 615,170.74 × 254,793.40
  4. Step 4: Simplify right side
    445,775.90x = 156,741,441,349.26
  5. Step 5: Solve for x
    x = 156,741,441,349.26/445,775.90
  6. Step 6: Final answer
    x = 351,614.88

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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.