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Finding the Fourth Proportional to 258,510.80, 386,844.60 and 179,253.20

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Solution

The fourth proportional to 258,510.80, 386,844.60 and 179,253.20 is: 268,240.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,510.80 : 386,844.60 = 179,253.20 : x
  2. Step 2: Convert to fraction form
    258,510.80/386,844.60 = 179,253.20/x
  3. Step 3: Cross multiply
    258,510.80x = 386,844.60 × 179,253.20
  4. Step 4: Simplify right side
    258,510.80x = 69,343,132,452.72
  5. Step 5: Solve for x
    x = 69,343,132,452.72/258,510.80
  6. Step 6: Final answer
    x = 268,240.76

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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.