Home / 238,587.48-357,871.86-80,815.92

Finding the Fourth Proportional to 238,587.48, 357,871.86 and 80,815.92

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Solution

The fourth proportional to 238,587.48, 357,871.86 and 80,815.92 is: 121,220.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,587.48 : 357,871.86 = 80,815.92 : x
  2. Step 2: Convert to fraction form
    238,587.48/357,871.86 = 80,815.92/x
  3. Step 3: Cross multiply
    238,587.48x = 357,871.86 × 80,815.92
  4. Step 4: Simplify right side
    238,587.48x = 28,921,743,608.01
  5. Step 5: Solve for x
    x = 28,921,743,608.01/238,587.48
  6. Step 6: Final answer
    x = 121,220.71

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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.