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Finding the Fourth Proportional to 439,755.84, 659,661.12 and 159,275.52

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Solution

The fourth proportional to 439,755.84, 659,661.12 and 159,275.52 is: 238,923.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,755.84 : 659,661.12 = 159,275.52 : x
  2. Step 2: Convert to fraction form
    439,755.84/659,661.12 = 159,275.52/x
  3. Step 3: Cross multiply
    439,755.84x = 659,661.12 × 159,275.52
  4. Step 4: Simplify right side
    439,755.84x = 105,067,867,911.78
  5. Step 5: Solve for x
    x = 105,067,867,911.78/439,755.84
  6. Step 6: Final answer
    x = 238,923.19

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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.