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Finding the Fourth Proportional to 415,360.20, 623,007.90 and 162,591.60

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Solution

The fourth proportional to 415,360.20, 623,007.90 and 162,591.60 is: 243,874.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,360.20 : 623,007.90 = 162,591.60 : x
  2. Step 2: Convert to fraction form
    415,360.20/623,007.90 = 162,591.60/x
  3. Step 3: Cross multiply
    415,360.20x = 623,007.90 × 162,591.60
  4. Step 4: Simplify right side
    415,360.20x = 101,295,851,273.64
  5. Step 5: Solve for x
    x = 101,295,851,273.64/415,360.20
  6. Step 6: Final answer
    x = 243,874.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.