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Finding the Fourth Proportional to 228,879.60, 343,319.40 and 158,020.80

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Solution

The fourth proportional to 228,879.60, 343,319.40 and 158,020.80 is: 237,031.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,879.60 : 343,319.40 = 158,020.80 : x
  2. Step 2: Convert to fraction form
    228,879.60/343,319.40 = 158,020.80/x
  3. Step 3: Cross multiply
    228,879.60x = 343,319.40 × 158,020.80
  4. Step 4: Simplify right side
    228,879.60x = 54,251,606,243.52
  5. Step 5: Solve for x
    x = 54,251,606,243.52/228,879.60
  6. Step 6: Final answer
    x = 237,031.20

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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.