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Finding the Fourth Proportional to 664,352.80, 995,924.40 and 243,527.20

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Solution

The fourth proportional to 664,352.80, 995,924.40 and 243,527.20 is: 365,069.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,352.80 : 995,924.40 = 243,527.20 : x
  2. Step 2: Convert to fraction form
    664,352.80/995,924.40 = 243,527.20/x
  3. Step 3: Cross multiply
    664,352.80x = 995,924.40 × 243,527.20
  4. Step 4: Simplify right side
    664,352.80x = 242,534,680,543.68
  5. Step 5: Solve for x
    x = 242,534,680,543.68/664,352.80
  6. Step 6: Final answer
    x = 365,069.10

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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.