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Finding the Fourth Proportional to 375,115.62, 561,465.27 and 247,137.57

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Solution

The fourth proportional to 375,115.62, 561,465.27 and 247,137.57 is: 369,910.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,115.62 : 561,465.27 = 247,137.57 : x
  2. Step 2: Convert to fraction form
    375,115.62/561,465.27 = 247,137.57/x
  3. Step 3: Cross multiply
    375,115.62x = 561,465.27 × 247,137.57
  4. Step 4: Simplify right side
    375,115.62x = 138,759,162,467.19
  5. Step 5: Solve for x
    x = 138,759,162,467.19/375,115.62
  6. Step 6: Final answer
    x = 369,910.38

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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.