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Finding the Fourth Proportional to 353,862.32, 487,760.84 and 239,105.12

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Solution

The fourth proportional to 353,862.32, 487,760.84 and 239,105.12 is: 329,580.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,862.32 : 487,760.84 = 239,105.12 : x
  2. Step 2: Convert to fraction form
    353,862.32/487,760.84 = 239,105.12/x
  3. Step 3: Cross multiply
    353,862.32x = 487,760.84 × 239,105.12
  4. Step 4: Simplify right side
    353,862.32x = 116,626,114,179.50
  5. Step 5: Solve for x
    x = 116,626,114,179.50/353,862.32
  6. Step 6: Final answer
    x = 329,580.48

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.