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Finding the Fourth Proportional to 445,155.84, 667,437.30 and 231,398.46

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Solution

The fourth proportional to 445,155.84, 667,437.30 and 231,398.46 is: 346,943.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,155.84 : 667,437.30 = 231,398.46 : x
  2. Step 2: Convert to fraction form
    445,155.84/667,437.30 = 231,398.46/x
  3. Step 3: Cross multiply
    445,155.84x = 667,437.30 × 231,398.46
  4. Step 4: Simplify right side
    445,155.84x = 154,443,963,366.56
  5. Step 5: Solve for x
    x = 154,443,963,366.56/445,155.84
  6. Step 6: Final answer
    x = 346,943.59

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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.