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Finding the Fourth Proportional to 267,085.08, 400,667.09 and 77,520.88

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Solution

The fourth proportional to 267,085.08, 400,667.09 and 77,520.88 is: 116,292.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,085.08 : 400,667.09 = 77,520.88 : x
  2. Step 2: Convert to fraction form
    267,085.08/400,667.09 = 77,520.88/x
  3. Step 3: Cross multiply
    267,085.08x = 400,667.09 × 77,520.88
  4. Step 4: Simplify right side
    267,085.08x = 31,060,065,403.84
  5. Step 5: Solve for x
    x = 31,060,065,403.84/267,085.08
  6. Step 6: Final answer
    x = 116,292.78

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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.