Home / 305,304.10-421,340.07-169,381.24

Finding the Fourth Proportional to 305,304.10, 421,340.07 and 169,381.24

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Solution

The fourth proportional to 305,304.10, 421,340.07 and 169,381.24 is: 233,757.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,304.10 : 421,340.07 = 169,381.24 : x
  2. Step 2: Convert to fraction form
    305,304.10/421,340.07 = 169,381.24/x
  3. Step 3: Cross multiply
    305,304.10x = 421,340.07 × 169,381.24
  4. Step 4: Simplify right side
    305,304.10x = 71,367,103,518.29
  5. Step 5: Solve for x
    x = 71,367,103,518.29/305,304.10
  6. Step 6: Final answer
    x = 233,757.44

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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.