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Finding the Fourth Proportional to 354,743.40, 532,115.10 and 248,455.20

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Solution

The fourth proportional to 354,743.40, 532,115.10 and 248,455.20 is: 372,682.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,743.40 : 532,115.10 = 248,455.20 : x
  2. Step 2: Convert to fraction form
    354,743.40/532,115.10 = 248,455.20/x
  3. Step 3: Cross multiply
    354,743.40x = 532,115.10 × 248,455.20
  4. Step 4: Simplify right side
    354,743.40x = 132,206,763,593.52
  5. Step 5: Solve for x
    x = 132,206,763,593.52/354,743.40
  6. Step 6: Final answer
    x = 372,682.80

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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.