Home / 199,330.40-298,995.60-66,231.20

Finding the Fourth Proportional to 199,330.40, 298,995.60 and 66,231.20

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Solution

The fourth proportional to 199,330.40, 298,995.60 and 66,231.20 is: 99,346.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,330.40 : 298,995.60 = 66,231.20 : x
  2. Step 2: Convert to fraction form
    199,330.40/298,995.60 = 66,231.20/x
  3. Step 3: Cross multiply
    199,330.40x = 298,995.60 × 66,231.20
  4. Step 4: Simplify right side
    199,330.40x = 19,802,837,382.72
  5. Step 5: Solve for x
    x = 19,802,837,382.72/199,330.40
  6. Step 6: Final answer
    x = 99,346.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.