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Finding the Fourth Proportional to 171,641.40, 256,943.70 and 150,905.40

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Solution

The fourth proportional to 171,641.40, 256,943.70 and 150,905.40 is: 225,902.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,641.40 : 256,943.70 = 150,905.40 : x
  2. Step 2: Convert to fraction form
    171,641.40/256,943.70 = 150,905.40/x
  3. Step 3: Cross multiply
    171,641.40x = 256,943.70 × 150,905.40
  4. Step 4: Simplify right side
    171,641.40x = 38,774,191,825.98
  5. Step 5: Solve for x
    x = 38,774,191,825.98/171,641.40
  6. Step 6: Final answer
    x = 225,902.33

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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.