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Finding the Fourth Proportional to 372,157.53, 557,983.61 and 189,339

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Solution

The fourth proportional to 372,157.53, 557,983.61 and 189,339 is: 283,879.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,157.53 : 557,983.61 = 189,339 : x
  2. Step 2: Convert to fraction form
    372,157.53/557,983.61 = 189,339/x
  3. Step 3: Cross multiply
    372,157.53x = 557,983.61 × 189,339
  4. Step 4: Simplify right side
    372,157.53x = 105,648,057,787.10
  5. Step 5: Solve for x
    x = 105,648,057,787.10/372,157.53
  6. Step 6: Final answer
    x = 283,879.94

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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.