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Finding the Fourth Proportional to 317,074.40, 437,330.84 and 202,431.86

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Solution

The fourth proportional to 317,074.40, 437,330.84 and 202,431.86 is: 279,207.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,074.40 : 437,330.84 = 202,431.86 : x
  2. Step 2: Convert to fraction form
    317,074.40/437,330.84 = 202,431.86/x
  3. Step 3: Cross multiply
    317,074.40x = 437,330.84 × 202,431.86
  4. Step 4: Simplify right side
    317,074.40x = 88,529,695,376.56
  5. Step 5: Solve for x
    x = 88,529,695,376.56/317,074.40
  6. Step 6: Final answer
    x = 279,207.96

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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.