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Finding the Fourth Proportional to 318,060.44, 439,025.70 and 203,647.26

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Solution

The fourth proportional to 318,060.44, 439,025.70 and 203,647.26 is: 281,098.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,060.44 : 439,025.70 = 203,647.26 : x
  2. Step 2: Convert to fraction form
    318,060.44/439,025.70 = 203,647.26/x
  3. Step 3: Cross multiply
    318,060.44x = 439,025.70 × 203,647.26
  4. Step 4: Simplify right side
    318,060.44x = 89,406,380,874.58
  5. Step 5: Solve for x
    x = 89,406,380,874.58/318,060.44
  6. Step 6: Final answer
    x = 281,098.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.