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Finding the Fourth Proportional to 382,446.80, 573,670.20 and 256,475.60

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Solution

The fourth proportional to 382,446.80, 573,670.20 and 256,475.60 is: 384,713.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,446.80 : 573,670.20 = 256,475.60 : x
  2. Step 2: Convert to fraction form
    382,446.80/573,670.20 = 256,475.60/x
  3. Step 3: Cross multiply
    382,446.80x = 573,670.20 × 256,475.60
  4. Step 4: Simplify right side
    382,446.80x = 147,132,408,747.12
  5. Step 5: Solve for x
    x = 147,132,408,747.12/382,446.80
  6. Step 6: Final answer
    x = 384,713.40

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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.