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Finding the Fourth Proportional to 440,045.80, 660,068.70 and 159,572.20

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Solution

The fourth proportional to 440,045.80, 660,068.70 and 159,572.20 is: 239,358.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,045.80 : 660,068.70 = 159,572.20 : x
  2. Step 2: Convert to fraction form
    440,045.80/660,068.70 = 159,572.20/x
  3. Step 3: Cross multiply
    440,045.80x = 660,068.70 × 159,572.20
  4. Step 4: Simplify right side
    440,045.80x = 105,328,614,610.14
  5. Step 5: Solve for x
    x = 105,328,614,610.14/440,045.80
  6. Step 6: Final answer
    x = 239,358.30

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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.