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Finding the Fourth Proportional to 171,681.40, 256,938.90 and 150,686.20

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Solution

The fourth proportional to 171,681.40, 256,938.90 and 150,686.20 is: 225,517.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,681.40 : 256,938.90 = 150,686.20 : x
  2. Step 2: Convert to fraction form
    171,681.40/256,938.90 = 150,686.20/x
  3. Step 3: Cross multiply
    171,681.40x = 256,938.90 × 150,686.20
  4. Step 4: Simplify right side
    171,681.40x = 38,717,146,473.18
  5. Step 5: Solve for x
    x = 38,717,146,473.18/171,681.40
  6. Step 6: Final answer
    x = 225,517.42

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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.