Home / 487,236.12-730,804.20-132,286

Finding the Fourth Proportional to 487,236.12, 730,804.20 and 132,286

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Solution

The fourth proportional to 487,236.12, 730,804.20 and 132,286 is: 198,415.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,236.12 : 730,804.20 = 132,286 : x
  2. Step 2: Convert to fraction form
    487,236.12/730,804.20 = 132,286/x
  3. Step 3: Cross multiply
    487,236.12x = 730,804.20 × 132,286
  4. Step 4: Simplify right side
    487,236.12x = 96,675,164,401.20
  5. Step 5: Solve for x
    x = 96,675,164,401.20/487,236.12
  6. Step 6: Final answer
    x = 198,415.43

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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.