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Finding the Fourth Proportional to 265,914.17, 398,874.75 and 88,421.19

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Solution

The fourth proportional to 265,914.17, 398,874.75 and 88,421.19 is: 132,632.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,914.17 : 398,874.75 = 88,421.19 : x
  2. Step 2: Convert to fraction form
    265,914.17/398,874.75 = 88,421.19/x
  3. Step 3: Cross multiply
    265,914.17x = 398,874.75 × 88,421.19
  4. Step 4: Simplify right side
    265,914.17x = 35,268,980,055.95
  5. Step 5: Solve for x
    x = 35,268,980,055.95/265,914.17
  6. Step 6: Final answer
    x = 132,632.95

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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.