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Finding the Fourth Proportional to 440,020.32, 660,308.15 and 187,300.41

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Solution

The fourth proportional to 440,020.32, 660,308.15 and 187,300.41 is: 281,068.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,020.32 : 660,308.15 = 187,300.41 : x
  2. Step 2: Convert to fraction form
    440,020.32/660,308.15 = 187,300.41/x
  3. Step 3: Cross multiply
    440,020.32x = 660,308.15 × 187,300.41
  4. Step 4: Simplify right side
    440,020.32x = 123,675,986,284.84
  5. Step 5: Solve for x
    x = 123,675,986,284.84/440,020.32
  6. Step 6: Final answer
    x = 281,068.81

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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.