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Finding the Fourth Proportional to 230,074.60, 317,502.30 and 129,472.60

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Solution

The fourth proportional to 230,074.60, 317,502.30 and 129,472.60 is: 178,671.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,074.60 : 317,502.30 = 129,472.60 : x
  2. Step 2: Convert to fraction form
    230,074.60/317,502.30 = 129,472.60/x
  3. Step 3: Cross multiply
    230,074.60x = 317,502.30 × 129,472.60
  4. Step 4: Simplify right side
    230,074.60x = 41,107,848,286.98
  5. Step 5: Solve for x
    x = 41,107,848,286.98/230,074.60
  6. Step 6: Final answer
    x = 178,671.82

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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.