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Finding the Fourth Proportional to 543,005.20, 814,507.80 and 227,429.20

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Solution

The fourth proportional to 543,005.20, 814,507.80 and 227,429.20 is: 341,143.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,005.20 : 814,507.80 = 227,429.20 : x
  2. Step 2: Convert to fraction form
    543,005.20/814,507.80 = 227,429.20/x
  3. Step 3: Cross multiply
    543,005.20x = 814,507.80 × 227,429.20
  4. Step 4: Simplify right side
    543,005.20x = 185,242,857,347.76
  5. Step 5: Solve for x
    x = 185,242,857,347.76/543,005.20
  6. Step 6: Final answer
    x = 341,143.80

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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.