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Finding the Fourth Proportional to 218,680.64, 326,822.82 and 159,640.64

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Solution

The fourth proportional to 218,680.64, 326,822.82 and 159,640.64 is: 238,586.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,680.64 : 326,822.82 = 159,640.64 : x
  2. Step 2: Convert to fraction form
    218,680.64/326,822.82 = 159,640.64/x
  3. Step 3: Cross multiply
    218,680.64x = 326,822.82 × 159,640.64
  4. Step 4: Simplify right side
    218,680.64x = 52,174,204,151.40
  5. Step 5: Solve for x
    x = 52,174,204,151.40/218,680.64
  6. Step 6: Final answer
    x = 238,586.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.