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Finding the Fourth Proportional to 248,800.86, 373,189.95 and 80,328.96

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Solution

The fourth proportional to 248,800.86, 373,189.95 and 80,328.96 is: 120,489.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,800.86 : 373,189.95 = 80,328.96 : x
  2. Step 2: Convert to fraction form
    248,800.86/373,189.95 = 80,328.96/x
  3. Step 3: Cross multiply
    248,800.86x = 373,189.95 × 80,328.96
  4. Step 4: Simplify right side
    248,800.86x = 29,977,960,565.95
  5. Step 5: Solve for x
    x = 29,977,960,565.95/248,800.86
  6. Step 6: Final answer
    x = 120,489.78

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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.