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Finding the Fourth Proportional to 375,809.08, 518,543.50 and 222,819

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Solution

The fourth proportional to 375,809.08, 518,543.50 and 222,819 is: 307,446.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,809.08 : 518,543.50 = 222,819 : x
  2. Step 2: Convert to fraction form
    375,809.08/518,543.50 = 222,819/x
  3. Step 3: Cross multiply
    375,809.08x = 518,543.50 × 222,819
  4. Step 4: Simplify right side
    375,809.08x = 115,541,344,126.50
  5. Step 5: Solve for x
    x = 115,541,344,126.50/375,809.08
  6. Step 6: Final answer
    x = 307,446.92

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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.