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Finding the Fourth Proportional to 224,649.62, 309,489.60 and 156,543

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Solution

The fourth proportional to 224,649.62, 309,489.60 and 156,543 is: 215,662.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,649.62 : 309,489.60 = 156,543 : x
  2. Step 2: Convert to fraction form
    224,649.62/309,489.60 = 156,543/x
  3. Step 3: Cross multiply
    224,649.62x = 309,489.60 × 156,543
  4. Step 4: Simplify right side
    224,649.62x = 48,448,430,452.80
  5. Step 5: Solve for x
    x = 48,448,430,452.80/224,649.62
  6. Step 6: Final answer
    x = 215,662.20

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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.