Home / 438,765.20-658,011.60-158,246

Finding the Fourth Proportional to 438,765.20, 658,011.60 and 158,246

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Solution

The fourth proportional to 438,765.20, 658,011.60 and 158,246 is: 237,319.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,765.20 : 658,011.60 = 158,246 : x
  2. Step 2: Convert to fraction form
    438,765.20/658,011.60 = 158,246/x
  3. Step 3: Cross multiply
    438,765.20x = 658,011.60 × 158,246
  4. Step 4: Simplify right side
    438,765.20x = 104,127,703,653.60
  5. Step 5: Solve for x
    x = 104,127,703,653.60/438,765.20
  6. Step 6: Final answer
    x = 237,319.88

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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.