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Finding the Fourth Proportional to 265,632.45, 398,391.75 and 76,041.90

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Solution

The fourth proportional to 265,632.45, 398,391.75 and 76,041.90 is: 114,046.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,632.45 : 398,391.75 = 76,041.90 : x
  2. Step 2: Convert to fraction form
    265,632.45/398,391.75 = 76,041.90/x
  3. Step 3: Cross multiply
    265,632.45x = 398,391.75 × 76,041.90
  4. Step 4: Simplify right side
    265,632.45x = 30,294,465,614.33
  5. Step 5: Solve for x
    x = 30,294,465,614.33/265,632.45
  6. Step 6: Final answer
    x = 114,046.55

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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.