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Finding the Fourth Proportional to 480,202.60, 720,755.88 and 243,715

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Solution

The fourth proportional to 480,202.60, 720,755.88 and 243,715 is: 365,801.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,202.60 : 720,755.88 = 243,715 : x
  2. Step 2: Convert to fraction form
    480,202.60/720,755.88 = 243,715/x
  3. Step 3: Cross multiply
    480,202.60x = 720,755.88 × 243,715
  4. Step 4: Simplify right side
    480,202.60x = 175,659,019,294.20
  5. Step 5: Solve for x
    x = 175,659,019,294.20/480,202.60
  6. Step 6: Final answer
    x = 365,801.89

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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.