Home / 305,463.15-421,539.39-169,496.55

Finding the Fourth Proportional to 305,463.15, 421,539.39 and 169,496.55

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Solution

The fourth proportional to 305,463.15, 421,539.39 and 169,496.55 is: 233,905.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,463.15 : 421,539.39 = 169,496.55 : x
  2. Step 2: Convert to fraction form
    305,463.15/421,539.39 = 169,496.55/x
  3. Step 3: Cross multiply
    305,463.15x = 421,539.39 × 169,496.55
  4. Step 4: Simplify right side
    305,463.15x = 71,449,472,294.10
  5. Step 5: Solve for x
    x = 71,449,472,294.10/305,463.15
  6. Step 6: Final answer
    x = 233,905.37

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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.