Home / 498,719.20-748,078.80-183,135.10

Finding the Fourth Proportional to 498,719.20, 748,078.80 and 183,135.10

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Solution

The fourth proportional to 498,719.20, 748,078.80 and 183,135.10 is: 274,702.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,719.20 : 748,078.80 = 183,135.10 : x
  2. Step 2: Convert to fraction form
    498,719.20/748,078.80 = 183,135.10/x
  3. Step 3: Cross multiply
    498,719.20x = 748,078.80 × 183,135.10
  4. Step 4: Simplify right side
    498,719.20x = 136,999,485,845.88
  5. Step 5: Solve for x
    x = 136,999,485,845.88/498,719.20
  6. Step 6: Final answer
    x = 274,702.65

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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.