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Finding the Fourth Proportional to 323,099.16, 445,825.44 and 187,145.76

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Solution

The fourth proportional to 323,099.16, 445,825.44 and 187,145.76 is: 258,231.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,099.16 : 445,825.44 = 187,145.76 : x
  2. Step 2: Convert to fraction form
    323,099.16/445,825.44 = 187,145.76/x
  3. Step 3: Cross multiply
    323,099.16x = 445,825.44 × 187,145.76
  4. Step 4: Simplify right side
    323,099.16x = 83,434,340,796.13
  5. Step 5: Solve for x
    x = 83,434,340,796.13/323,099.16
  6. Step 6: Final answer
    x = 258,231.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.