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Finding the Fourth Proportional to 307,560.52, 424,443.99 and 178,489.06

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Solution

The fourth proportional to 307,560.52, 424,443.99 and 178,489.06 is: 246,320.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,560.52 : 424,443.99 = 178,489.06 : x
  2. Step 2: Convert to fraction form
    307,560.52/424,443.99 = 178,489.06/x
  3. Step 3: Cross multiply
    307,560.52x = 424,443.99 × 178,489.06
  4. Step 4: Simplify right side
    307,560.52x = 75,758,608,797.75
  5. Step 5: Solve for x
    x = 75,758,608,797.75/307,560.52
  6. Step 6: Final answer
    x = 246,320.98

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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.