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Finding the Fourth Proportional to 331,894.80, 458,042.04 and 188,699.76

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Solution

The fourth proportional to 331,894.80, 458,042.04 and 188,699.76 is: 260,421.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,894.80 : 458,042.04 = 188,699.76 : x
  2. Step 2: Convert to fraction form
    331,894.80/458,042.04 = 188,699.76/x
  3. Step 3: Cross multiply
    331,894.80x = 458,042.04 × 188,699.76
  4. Step 4: Simplify right side
    331,894.80x = 86,432,423,017.91
  5. Step 5: Solve for x
    x = 86,432,423,017.91/331,894.80
  6. Step 6: Final answer
    x = 260,421.14

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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.