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Finding the Fourth Proportional to 440,318.32, 660,269.30 and 170,572.80

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Solution

The fourth proportional to 440,318.32, 660,269.30 and 170,572.80 is: 255,778.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,318.32 : 660,269.30 = 170,572.80 : x
  2. Step 2: Convert to fraction form
    440,318.32/660,269.30 = 170,572.80/x
  3. Step 3: Cross multiply
    440,318.32x = 660,269.30 × 170,572.80
  4. Step 4: Simplify right side
    440,318.32x = 112,623,979,786.90
  5. Step 5: Solve for x
    x = 112,623,979,786.90/440,318.32
  6. Step 6: Final answer
    x = 255,778.55

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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.