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Finding the Fourth Proportional to 228,521.80, 342,879.90 and 110,132.20

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Solution

The fourth proportional to 228,521.80, 342,879.90 and 110,132.20 is: 165,245.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,521.80 : 342,879.90 = 110,132.20 : x
  2. Step 2: Convert to fraction form
    228,521.80/342,879.90 = 110,132.20/x
  3. Step 3: Cross multiply
    228,521.80x = 342,879.90 × 110,132.20
  4. Step 4: Simplify right side
    228,521.80x = 37,762,117,722.78
  5. Step 5: Solve for x
    x = 37,762,117,722.78/228,521.80
  6. Step 6: Final answer
    x = 165,245.14

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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.