Home / 305,162.28-421,107.06-169,188.30

Finding the Fourth Proportional to 305,162.28, 421,107.06 and 169,188.30

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Solution

The fourth proportional to 305,162.28, 421,107.06 and 169,188.30 is: 233,470.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,162.28 : 421,107.06 = 169,188.30 : x
  2. Step 2: Convert to fraction form
    305,162.28/421,107.06 = 169,188.30/x
  3. Step 3: Cross multiply
    305,162.28x = 421,107.06 × 169,188.30
  4. Step 4: Simplify right side
    305,162.28x = 71,246,387,599.40
  5. Step 5: Solve for x
    x = 71,246,387,599.40/305,162.28
  6. Step 6: Final answer
    x = 233,470.49

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1.5x scale

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.