Home / 305,344.32-421,381.92-169,373.85

Finding the Fourth Proportional to 305,344.32, 421,381.92 and 169,373.85

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Solution

The fourth proportional to 305,344.32, 421,381.92 and 169,373.85 is: 233,739.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,344.32 : 421,381.92 = 169,373.85 : x
  2. Step 2: Convert to fraction form
    305,344.32/421,381.92 = 169,373.85/x
  3. Step 3: Cross multiply
    305,344.32x = 421,381.92 × 169,373.85
  4. Step 4: Simplify right side
    305,344.32x = 71,371,078,110.79
  5. Step 5: Solve for x
    x = 71,371,078,110.79/305,344.32
  6. Step 6: Final answer
    x = 233,739.66

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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.