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Finding the Fourth Proportional to 256,070.60, 384,278.70 and 167,107.40

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Solution

The fourth proportional to 256,070.60, 384,278.70 and 167,107.40 is: 250,773.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,070.60 : 384,278.70 = 167,107.40 : x
  2. Step 2: Convert to fraction form
    256,070.60/384,278.70 = 167,107.40/x
  3. Step 3: Cross multiply
    256,070.60x = 384,278.70 × 167,107.40
  4. Step 4: Simplify right side
    256,070.60x = 64,215,814,432.38
  5. Step 5: Solve for x
    x = 64,215,814,432.38/256,070.60
  6. Step 6: Final answer
    x = 250,773.87

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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.