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Finding the Fourth Proportional to 228,862.80, 343,297.38 and 71,081.28

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Solution

The fourth proportional to 228,862.80, 343,297.38 and 71,081.28 is: 106,622.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,862.80 : 343,297.38 = 71,081.28 : x
  2. Step 2: Convert to fraction form
    228,862.80/343,297.38 = 71,081.28/x
  3. Step 3: Cross multiply
    228,862.80x = 343,297.38 × 71,081.28
  4. Step 4: Simplify right side
    228,862.80x = 24,402,017,191.05
  5. Step 5: Solve for x
    x = 24,402,017,191.05/228,862.80
  6. Step 6: Final answer
    x = 106,622.91

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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.