Home / 305,575.30-421,687.38-169,601.32

Finding the Fourth Proportional to 305,575.30, 421,687.38 and 169,601.32

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Solution

The fourth proportional to 305,575.30, 421,687.38 and 169,601.32 is: 234,046.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,575.30 : 421,687.38 = 169,601.32 : x
  2. Step 2: Convert to fraction form
    305,575.30/421,687.38 = 169,601.32/x
  3. Step 3: Cross multiply
    305,575.30x = 421,687.38 × 169,601.32
  4. Step 4: Simplify right side
    305,575.30x = 71,518,736,275.34
  5. Step 5: Solve for x
    x = 71,518,736,275.34/305,575.30
  6. Step 6: Final answer
    x = 234,046.20

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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.