Home / 398,829.30-598,068.81-149,336.34

Finding the Fourth Proportional to 398,829.30, 598,068.81 and 149,336.34

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Solution

The fourth proportional to 398,829.30, 598,068.81 and 149,336.34 is: 223,938.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,829.30 : 598,068.81 = 149,336.34 : x
  2. Step 2: Convert to fraction form
    398,829.30/598,068.81 = 149,336.34/x
  3. Step 3: Cross multiply
    398,829.30x = 598,068.81 × 149,336.34
  4. Step 4: Simplify right side
    398,829.30x = 89,313,407,153.56
  5. Step 5: Solve for x
    x = 89,313,407,153.56/398,829.30
  6. Step 6: Final answer
    x = 223,938.93

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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.