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Finding the Fourth Proportional to 215,459.81, 323,177.56 and 95,482.20

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Solution

The fourth proportional to 215,459.81, 323,177.56 and 95,482.20 is: 143,217.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,459.81 : 323,177.56 = 95,482.20 : x
  2. Step 2: Convert to fraction form
    215,459.81/323,177.56 = 95,482.20/x
  3. Step 3: Cross multiply
    215,459.81x = 323,177.56 × 95,482.20
  4. Step 4: Simplify right side
    215,459.81x = 30,857,705,392.64
  5. Step 5: Solve for x
    x = 30,857,705,392.64/215,459.81
  6. Step 6: Final answer
    x = 143,217.92

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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.