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Finding the Fourth Proportional to 228,925.80, 343,388.70 and 154,276.20

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Solution

The fourth proportional to 228,925.80, 343,388.70 and 154,276.20 is: 231,414.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,925.80 : 343,388.70 = 154,276.20 : x
  2. Step 2: Convert to fraction form
    228,925.80/343,388.70 = 154,276.20/x
  3. Step 3: Cross multiply
    228,925.80x = 343,388.70 × 154,276.20
  4. Step 4: Simplify right side
    228,925.80x = 52,976,703,758.94
  5. Step 5: Solve for x
    x = 52,976,703,758.94/228,925.80
  6. Step 6: Final answer
    x = 231,414.30

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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.