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Finding the Fourth Proportional to 265,689.88, 398,448.15 and 88,149.22

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Solution

The fourth proportional to 265,689.88, 398,448.15 and 88,149.22 is: 132,195.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,689.88 : 398,448.15 = 88,149.22 : x
  2. Step 2: Convert to fraction form
    265,689.88/398,448.15 = 88,149.22/x
  3. Step 3: Cross multiply
    265,689.88x = 398,448.15 × 88,149.22
  4. Step 4: Simplify right side
    265,689.88x = 35,122,893,632.94
  5. Step 5: Solve for x
    x = 35,122,893,632.94/265,689.88
  6. Step 6: Final answer
    x = 132,195.08

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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.