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Finding the Fourth Proportional to 352,002.40, 528,003.60 and 331,727.20

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Solution

The fourth proportional to 352,002.40, 528,003.60 and 331,727.20 is: 497,590.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,002.40 : 528,003.60 = 331,727.20 : x
  2. Step 2: Convert to fraction form
    352,002.40/528,003.60 = 331,727.20/x
  3. Step 3: Cross multiply
    352,002.40x = 528,003.60 × 331,727.20
  4. Step 4: Simplify right side
    352,002.40x = 175,153,155,817.92
  5. Step 5: Solve for x
    x = 175,153,155,817.92/352,002.40
  6. Step 6: Final answer
    x = 497,590.80

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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.