Home / 398,742.44-598,112.28-99,222.96

Finding the Fourth Proportional to 398,742.44, 598,112.28 and 99,222.96

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Solution

The fourth proportional to 398,742.44, 598,112.28 and 99,222.96 is: 148,834.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,742.44 : 598,112.28 = 99,222.96 : x
  2. Step 2: Convert to fraction form
    398,742.44/598,112.28 = 99,222.96/x
  3. Step 3: Cross multiply
    398,742.44x = 598,112.28 × 99,222.96
  4. Step 4: Simplify right side
    398,742.44x = 59,346,472,329.23
  5. Step 5: Solve for x
    x = 59,346,472,329.23/398,742.44
  6. Step 6: Final answer
    x = 148,834.10

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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.