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Finding the Fourth Proportional to 539,206.30, 808,517.85 and 223,695.10

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Solution

The fourth proportional to 539,206.30, 808,517.85 and 223,695.10 is: 335,421.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,206.30 : 808,517.85 = 223,695.10 : x
  2. Step 2: Convert to fraction form
    539,206.30/808,517.85 = 223,695.10/x
  3. Step 3: Cross multiply
    539,206.30x = 808,517.85 × 223,695.10
  4. Step 4: Simplify right side
    539,206.30x = 180,861,481,307.54
  5. Step 5: Solve for x
    x = 180,861,481,307.54/539,206.30
  6. Step 6: Final answer
    x = 335,421.68

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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.