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Finding the Fourth Proportional to 218,680.14, 326,822.07 and 159,640.14

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Solution

The fourth proportional to 218,680.14, 326,822.07 and 159,640.14 is: 238,585.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,680.14 : 326,822.07 = 159,640.14 : x
  2. Step 2: Convert to fraction form
    218,680.14/326,822.07 = 159,640.14/x
  3. Step 3: Cross multiply
    218,680.14x = 326,822.07 × 159,640.14
  4. Step 4: Simplify right side
    218,680.14x = 52,173,921,009.89
  5. Step 5: Solve for x
    x = 52,173,921,009.89/218,680.14
  6. Step 6: Final answer
    x = 238,585.55

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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.