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Finding the Fourth Proportional to 215,614.60, 323,421.90 and 180,622.60

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Solution

The fourth proportional to 215,614.60, 323,421.90 and 180,622.60 is: 270,933.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,614.60 : 323,421.90 = 180,622.60 : x
  2. Step 2: Convert to fraction form
    215,614.60/323,421.90 = 180,622.60/x
  3. Step 3: Cross multiply
    215,614.60x = 323,421.90 × 180,622.60
  4. Step 4: Simplify right side
    215,614.60x = 58,417,304,474.94
  5. Step 5: Solve for x
    x = 58,417,304,474.94/215,614.60
  6. Step 6: Final answer
    x = 270,933.90

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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.