Home / 328,724.50-453,640.20-177,821.50

Finding the Fourth Proportional to 328,724.50, 453,640.20 and 177,821.50

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Solution

The fourth proportional to 328,724.50, 453,640.20 and 177,821.50 is: 245,393.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,724.50 : 453,640.20 = 177,821.50 : x
  2. Step 2: Convert to fraction form
    328,724.50/453,640.20 = 177,821.50/x
  3. Step 3: Cross multiply
    328,724.50x = 453,640.20 × 177,821.50
  4. Step 4: Simplify right side
    328,724.50x = 80,666,980,824.30
  5. Step 5: Solve for x
    x = 80,666,980,824.30/328,724.50
  6. Step 6: Final answer
    x = 245,393.88

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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.