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Finding the Fourth Proportional to 229,152.20, 343,728.30 and 218,265.80

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Solution

The fourth proportional to 229,152.20, 343,728.30 and 218,265.80 is: 327,398.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,152.20 : 343,728.30 = 218,265.80 : x
  2. Step 2: Convert to fraction form
    229,152.20/343,728.30 = 218,265.80/x
  3. Step 3: Cross multiply
    229,152.20x = 343,728.30 × 218,265.80
  4. Step 4: Simplify right side
    229,152.20x = 75,024,132,382.14
  5. Step 5: Solve for x
    x = 75,024,132,382.14/229,152.20
  6. Step 6: Final answer
    x = 327,398.70

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1.5x scale

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.