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Finding the Fourth Proportional to 217,925.16, 300,759.87 and 131,931.12

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Solution

The fourth proportional to 217,925.16, 300,759.87 and 131,931.12 is: 182,078.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,925.16 : 300,759.87 = 131,931.12 : x
  2. Step 2: Convert to fraction form
    217,925.16/300,759.87 = 131,931.12/x
  3. Step 3: Cross multiply
    217,925.16x = 300,759.87 × 131,931.12
  4. Step 4: Simplify right side
    217,925.16x = 39,679,586,500.15
  5. Step 5: Solve for x
    x = 39,679,586,500.15/217,925.16
  6. Step 6: Final answer
    x = 182,078.96

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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.