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Finding the Fourth Proportional to 488,141.60, 732,212.40 and 207,622.40

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Solution

The fourth proportional to 488,141.60, 732,212.40 and 207,622.40 is: 311,433.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,141.60 : 732,212.40 = 207,622.40 : x
  2. Step 2: Convert to fraction form
    488,141.60/732,212.40 = 207,622.40/x
  3. Step 3: Cross multiply
    488,141.60x = 732,212.40 × 207,622.40
  4. Step 4: Simplify right side
    488,141.60x = 152,023,695,797.76
  5. Step 5: Solve for x
    x = 152,023,695,797.76/488,141.60
  6. Step 6: Final answer
    x = 311,433.60

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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.