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Finding the Fourth Proportional to 171,630.32, 256,047.82 and 143,723.12

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Solution

The fourth proportional to 171,630.32, 256,047.82 and 143,723.12 is: 214,414.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,630.32 : 256,047.82 = 143,723.12 : x
  2. Step 2: Convert to fraction form
    171,630.32/256,047.82 = 143,723.12/x
  3. Step 3: Cross multiply
    171,630.32x = 256,047.82 × 143,723.12
  4. Step 4: Simplify right side
    171,630.32x = 36,799,991,559.60
  5. Step 5: Solve for x
    x = 36,799,991,559.60/171,630.32
  6. Step 6: Final answer
    x = 214,414.28

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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.