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Finding the Fourth Proportional to 291,230.56, 436,285.56 and 178,581.96

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Solution

The fourth proportional to 291,230.56, 436,285.56 and 178,581.96 is: 267,529.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,230.56 : 436,285.56 = 178,581.96 : x
  2. Step 2: Convert to fraction form
    291,230.56/436,285.56 = 178,581.96/x
  3. Step 3: Cross multiply
    291,230.56x = 436,285.56 × 178,581.96
  4. Step 4: Simplify right side
    291,230.56x = 77,912,730,424.50
  5. Step 5: Solve for x
    x = 77,912,730,424.50/291,230.56
  6. Step 6: Final answer
    x = 267,529.38

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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.