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Finding the Fourth Proportional to 442,153.60, 663,359.55 and 142,627.53

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Solution

The fourth proportional to 442,153.60, 663,359.55 and 142,627.53 is: 213,982.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,153.60 : 663,359.55 = 142,627.53 : x
  2. Step 2: Convert to fraction form
    442,153.60/663,359.55 = 142,627.53/x
  3. Step 3: Cross multiply
    442,153.60x = 663,359.55 × 142,627.53
  4. Step 4: Simplify right side
    442,153.60x = 94,613,334,118.41
  5. Step 5: Solve for x
    x = 94,613,334,118.41/442,153.60
  6. Step 6: Final answer
    x = 213,982.96

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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.