Home / 397,438.80-596,158.20-131,240.40

Finding the Fourth Proportional to 397,438.80, 596,158.20 and 131,240.40

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Solution

The fourth proportional to 397,438.80, 596,158.20 and 131,240.40 is: 196,860.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,438.80 : 596,158.20 = 131,240.40 : x
  2. Step 2: Convert to fraction form
    397,438.80/596,158.20 = 131,240.40/x
  3. Step 3: Cross multiply
    397,438.80x = 596,158.20 × 131,240.40
  4. Step 4: Simplify right side
    397,438.80x = 78,240,040,631.28
  5. Step 5: Solve for x
    x = 78,240,040,631.28/397,438.80
  6. Step 6: Final answer
    x = 196,860.60

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1.5x scale

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.