Home / 398,835.30-598,077.81-149,342.34

Finding the Fourth Proportional to 398,835.30, 598,077.81 and 149,342.34

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Solution

The fourth proportional to 398,835.30, 598,077.81 and 149,342.34 is: 223,947.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,835.30 : 598,077.81 = 149,342.34 : x
  2. Step 2: Convert to fraction form
    398,835.30/598,077.81 = 149,342.34/x
  3. Step 3: Cross multiply
    398,835.30x = 598,077.81 × 149,342.34
  4. Step 4: Simplify right side
    398,835.30x = 89,318,339,647.48
  5. Step 5: Solve for x
    x = 89,318,339,647.48/398,835.30
  6. Step 6: Final answer
    x = 223,947.93

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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.