Home / 539,140.15-807,911.52-218,902.60

Finding the Fourth Proportional to 539,140.15, 807,911.52 and 218,902.60

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Solution

The fourth proportional to 539,140.15, 807,911.52 and 218,902.60 is: 328,029.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,140.15 : 807,911.52 = 218,902.60 : x
  2. Step 2: Convert to fraction form
    539,140.15/807,911.52 = 218,902.60/x
  3. Step 3: Cross multiply
    539,140.15x = 807,911.52 × 218,902.60
  4. Step 4: Simplify right side
    539,140.15x = 176,853,932,486.96
  5. Step 5: Solve for x
    x = 176,853,932,486.96/539,140.15
  6. Step 6: Final answer
    x = 328,029.61

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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.