Home / 397,439.80-596,159.70-131,241.40

Finding the Fourth Proportional to 397,439.80, 596,159.70 and 131,241.40

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Solution

The fourth proportional to 397,439.80, 596,159.70 and 131,241.40 is: 196,862.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,439.80 : 596,159.70 = 131,241.40 : x
  2. Step 2: Convert to fraction form
    397,439.80/596,159.70 = 131,241.40/x
  3. Step 3: Cross multiply
    397,439.80x = 596,159.70 × 131,241.40
  4. Step 4: Simplify right side
    397,439.80x = 78,240,833,651.58
  5. Step 5: Solve for x
    x = 78,240,833,651.58/397,439.80
  6. Step 6: Final answer
    x = 196,862.10

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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.