Home / 320,343.20-442,065.84-177,099.60

Finding the Fourth Proportional to 320,343.20, 442,065.84 and 177,099.60

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Solution

The fourth proportional to 320,343.20, 442,065.84 and 177,099.60 is: 244,393.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,343.20 : 442,065.84 = 177,099.60 : x
  2. Step 2: Convert to fraction form
    320,343.20/442,065.84 = 177,099.60/x
  3. Step 3: Cross multiply
    320,343.20x = 442,065.84 × 177,099.60
  4. Step 4: Simplify right side
    320,343.20x = 78,289,683,437.66
  5. Step 5: Solve for x
    x = 78,289,683,437.66/320,343.20
  6. Step 6: Final answer
    x = 244,393.15

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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.