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Finding the Fourth Proportional to 182,486.28, 273,659.76 and 87,690

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Solution

The fourth proportional to 182,486.28, 273,659.76 and 87,690 is: 131,501.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    182,486.28 : 273,659.76 = 87,690 : x
  2. Step 2: Convert to fraction form
    182,486.28/273,659.76 = 87,690/x
  3. Step 3: Cross multiply
    182,486.28x = 273,659.76 × 87,690
  4. Step 4: Simplify right side
    182,486.28x = 23,997,224,354.40
  5. Step 5: Solve for x
    x = 23,997,224,354.40/182,486.28
  6. Step 6: Final answer
    x = 131,501.53

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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.