Home / 498,949.20-748,205.10-199,330.20

Finding the Fourth Proportional to 498,949.20, 748,205.10 and 199,330.20

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Solution

The fourth proportional to 498,949.20, 748,205.10 and 199,330.20 is: 298,907.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,949.20 : 748,205.10 = 199,330.20 : x
  2. Step 2: Convert to fraction form
    498,949.20/748,205.10 = 199,330.20/x
  3. Step 3: Cross multiply
    498,949.20x = 748,205.10 × 199,330.20
  4. Step 4: Simplify right side
    498,949.20x = 149,139,872,224.02
  5. Step 5: Solve for x
    x = 149,139,872,224.02/498,949.20
  6. Step 6: Final answer
    x = 298,907.93

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1.5x scale

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.