Home / 306,961.30-423,590.16-169,135.95

Finding the Fourth Proportional to 306,961.30, 423,590.16 and 169,135.95

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Solution

The fourth proportional to 306,961.30, 423,590.16 and 169,135.95 is: 233,398.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,961.30 : 423,590.16 = 169,135.95 : x
  2. Step 2: Convert to fraction form
    306,961.30/423,590.16 = 169,135.95/x
  3. Step 3: Cross multiply
    306,961.30x = 423,590.16 × 169,135.95
  4. Step 4: Simplify right side
    306,961.30x = 71,644,323,010.89
  5. Step 5: Solve for x
    x = 71,644,323,010.89/306,961.30
  6. Step 6: Final answer
    x = 233,398.56

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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.