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Finding the Fourth Proportional to 228,856.90, 343,350.15 and 71,101.30

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Solution

The fourth proportional to 228,856.90, 343,350.15 and 71,101.30 is: 106,672.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,856.90 : 343,350.15 = 71,101.30 : x
  2. Step 2: Convert to fraction form
    228,856.90/343,350.15 = 71,101.30/x
  3. Step 3: Cross multiply
    228,856.90x = 343,350.15 × 71,101.30
  4. Step 4: Simplify right side
    228,856.90x = 24,412,642,020.20
  5. Step 5: Solve for x
    x = 24,412,642,020.20/228,856.90
  6. Step 6: Final answer
    x = 106,672.08

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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.