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Finding the Fourth Proportional to 239,744.16, 359,616.32 and 81,974.08

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Solution

The fourth proportional to 239,744.16, 359,616.32 and 81,974.08 is: 122,961.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,744.16 : 359,616.32 = 81,974.08 : x
  2. Step 2: Convert to fraction form
    239,744.16/359,616.32 = 81,974.08/x
  3. Step 3: Cross multiply
    239,744.16x = 359,616.32 × 81,974.08
  4. Step 4: Simplify right side
    239,744.16x = 29,479,216,984.99
  5. Step 5: Solve for x
    x = 29,479,216,984.99/239,744.16
  6. Step 6: Final answer
    x = 122,961.15

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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.