Home / 386,795.61-580,221.36-161,929.89

Finding the Fourth Proportional to 386,795.61, 580,221.36 and 161,929.89

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Solution

The fourth proportional to 386,795.61, 580,221.36 and 161,929.89 is: 242,906.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,795.61 : 580,221.36 = 161,929.89 : x
  2. Step 2: Convert to fraction form
    386,795.61/580,221.36 = 161,929.89/x
  3. Step 3: Cross multiply
    386,795.61x = 580,221.36 × 161,929.89
  4. Step 4: Simplify right side
    386,795.61x = 93,955,181,000.45
  5. Step 5: Solve for x
    x = 93,955,181,000.45/386,795.61
  6. Step 6: Final answer
    x = 242,906.53

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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.