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Finding the Fourth Proportional to 287,234.10, 430,851.15 and 227,747.70

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Solution

The fourth proportional to 287,234.10, 430,851.15 and 227,747.70 is: 341,621.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,234.10 : 430,851.15 = 227,747.70 : x
  2. Step 2: Convert to fraction form
    287,234.10/430,851.15 = 227,747.70/x
  3. Step 3: Cross multiply
    287,234.10x = 430,851.15 × 227,747.70
  4. Step 4: Simplify right side
    287,234.10x = 98,125,358,454.86
  5. Step 5: Solve for x
    x = 98,125,358,454.86/287,234.10
  6. Step 6: Final answer
    x = 341,621.55

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Similar ratio
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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.