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Finding the Fourth Proportional to 254,381.40, 381,572.10 and 88,186.20

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Solution

The fourth proportional to 254,381.40, 381,572.10 and 88,186.20 is: 132,279.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,381.40 : 381,572.10 = 88,186.20 : x
  2. Step 2: Convert to fraction form
    254,381.40/381,572.10 = 88,186.20/x
  3. Step 3: Cross multiply
    254,381.40x = 381,572.10 × 88,186.20
  4. Step 4: Simplify right side
    254,381.40x = 33,649,393,525.02
  5. Step 5: Solve for x
    x = 33,649,393,525.02/254,381.40
  6. Step 6: Final answer
    x = 132,279.30

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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.