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Finding the Fourth Proportional to 253,513.08, 380,246.94 and 76,059.72

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Solution

The fourth proportional to 253,513.08, 380,246.94 and 76,059.72 is: 114,082.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,513.08 : 380,246.94 = 76,059.72 : x
  2. Step 2: Convert to fraction form
    253,513.08/380,246.94 = 76,059.72/x
  3. Step 3: Cross multiply
    253,513.08x = 380,246.94 × 76,059.72
  4. Step 4: Simplify right side
    253,513.08x = 28,921,475,787.26
  5. Step 5: Solve for x
    x = 28,921,475,787.26/253,513.08
  6. Step 6: Final answer
    x = 114,082.78

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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.