Home / 313,219.38-432,243.04-169,979.45

Finding the Fourth Proportional to 313,219.38, 432,243.04 and 169,979.45

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Solution

The fourth proportional to 313,219.38, 432,243.04 and 169,979.45 is: 234,571.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,219.38 : 432,243.04 = 169,979.45 : x
  2. Step 2: Convert to fraction form
    313,219.38/432,243.04 = 169,979.45/x
  3. Step 3: Cross multiply
    313,219.38x = 432,243.04 × 169,979.45
  4. Step 4: Simplify right side
    313,219.38x = 73,472,434,205.53
  5. Step 5: Solve for x
    x = 73,472,434,205.53/313,219.38
  6. Step 6: Final answer
    x = 234,571.80

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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.