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Finding the Fourth Proportional to 239,729.48, 359,652.77 and 79,805.11

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Solution

The fourth proportional to 239,729.48, 359,652.77 and 79,805.11 is: 119,727.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,729.48 : 359,652.77 = 79,805.11 : x
  2. Step 2: Convert to fraction form
    239,729.48/359,652.77 = 79,805.11/x
  3. Step 3: Cross multiply
    239,729.48x = 359,652.77 × 79,805.11
  4. Step 4: Simplify right side
    239,729.48x = 28,702,128,871.65
  5. Step 5: Solve for x
    x = 28,702,128,871.65/239,729.48
  6. Step 6: Final answer
    x = 119,727.16

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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.