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Finding the Fourth Proportional to 228,937.60, 343,438.80 and 71,149.60

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Solution

The fourth proportional to 228,937.60, 343,438.80 and 71,149.60 is: 106,734.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,937.60 : 343,438.80 = 71,149.60 : x
  2. Step 2: Convert to fraction form
    228,937.60/343,438.80 = 71,149.60/x
  3. Step 3: Cross multiply
    228,937.60x = 343,438.80 × 71,149.60
  4. Step 4: Simplify right side
    228,937.60x = 24,435,533,244.48
  5. Step 5: Solve for x
    x = 24,435,533,244.48/228,937.60
  6. Step 6: Final answer
    x = 106,734.47

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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.