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Finding the Fourth Proportional to 375,808.08, 518,542.12 and 222,818

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Solution

The fourth proportional to 375,808.08, 518,542.12 and 222,818 is: 307,445.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,808.08 : 518,542.12 = 222,818 : x
  2. Step 2: Convert to fraction form
    375,808.08/518,542.12 = 222,818/x
  3. Step 3: Cross multiply
    375,808.08x = 518,542.12 × 222,818
  4. Step 4: Simplify right side
    375,808.08x = 115,540,518,094.16
  5. Step 5: Solve for x
    x = 115,540,518,094.16/375,808.08
  6. Step 6: Final answer
    x = 307,445.54

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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.