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Finding the Fourth Proportional to 542,850.90, 814,276.35 and 243,013.20

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Solution

The fourth proportional to 542,850.90, 814,276.35 and 243,013.20 is: 364,519.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,850.90 : 814,276.35 = 243,013.20 : x
  2. Step 2: Convert to fraction form
    542,850.90/814,276.35 = 243,013.20/x
  3. Step 3: Cross multiply
    542,850.90x = 814,276.35 × 243,013.20
  4. Step 4: Simplify right side
    542,850.90x = 197,879,901,497.82
  5. Step 5: Solve for x
    x = 197,879,901,497.82/542,850.90
  6. Step 6: Final answer
    x = 364,519.80

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Similar ratio
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1.5x scale

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.