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Finding the Fourth Proportional to 327,706.68, 491,677.56 and 128,170.26

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Solution

The fourth proportional to 327,706.68, 491,677.56 and 128,170.26 is: 192,301.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,706.68 : 491,677.56 = 128,170.26 : x
  2. Step 2: Convert to fraction form
    327,706.68/491,677.56 = 128,170.26/x
  3. Step 3: Cross multiply
    327,706.68x = 491,677.56 × 128,170.26
  4. Step 4: Simplify right side
    327,706.68x = 63,018,440,701.37
  5. Step 5: Solve for x
    x = 63,018,440,701.37/327,706.68
  6. Step 6: Final answer
    x = 192,301.36

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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.