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Finding the Fourth Proportional to 552,175.87, 761,992.65 and 307,159.43

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Solution

The fourth proportional to 552,175.87, 761,992.65 and 307,159.43 is: 423,874.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,175.87 : 761,992.65 = 307,159.43 : x
  2. Step 2: Convert to fraction form
    552,175.87/761,992.65 = 307,159.43/x
  3. Step 3: Cross multiply
    552,175.87x = 761,992.65 × 307,159.43
  4. Step 4: Simplify right side
    552,175.87x = 234,053,228,038.19
  5. Step 5: Solve for x
    x = 234,053,228,038.19/552,175.87
  6. Step 6: Final answer
    x = 423,874.42

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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.