Home / 204,821.60-307,693.20-142,613.60

Finding the Fourth Proportional to 204,821.60, 307,693.20 and 142,613.60

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Solution

The fourth proportional to 204,821.60, 307,693.20 and 142,613.60 is: 214,241.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,821.60 : 307,693.20 = 142,613.60 : x
  2. Step 2: Convert to fraction form
    204,821.60/307,693.20 = 142,613.60/x
  3. Step 3: Cross multiply
    204,821.60x = 307,693.20 × 142,613.60
  4. Step 4: Simplify right side
    204,821.60x = 43,881,234,947.52
  5. Step 5: Solve for x
    x = 43,881,234,947.52/204,821.60
  6. Step 6: Final answer
    x = 214,241.25

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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.