Home / 347,815.20-521,917.20-148,101.60

Finding the Fourth Proportional to 347,815.20, 521,917.20 and 148,101.60

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Solution

The fourth proportional to 347,815.20, 521,917.20 and 148,101.60 is: 222,235.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,815.20 : 521,917.20 = 148,101.60 : x
  2. Step 2: Convert to fraction form
    347,815.20/521,917.20 = 148,101.60/x
  3. Step 3: Cross multiply
    347,815.20x = 521,917.20 × 148,101.60
  4. Step 4: Simplify right side
    347,815.20x = 77,296,772,387.52
  5. Step 5: Solve for x
    x = 77,296,772,387.52/347,815.20
  6. Step 6: Final answer
    x = 222,235.18

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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.