Home / 331,019.40-496,529.10-131,387.40

Finding the Fourth Proportional to 331,019.40, 496,529.10 and 131,387.40

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Solution

The fourth proportional to 331,019.40, 496,529.10 and 131,387.40 is: 197,081.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,019.40 : 496,529.10 = 131,387.40 : x
  2. Step 2: Convert to fraction form
    331,019.40/496,529.10 = 131,387.40/x
  3. Step 3: Cross multiply
    331,019.40x = 496,529.10 × 131,387.40
  4. Step 4: Simplify right side
    331,019.40x = 65,237,667,473.34
  5. Step 5: Solve for x
    x = 65,237,667,473.34/331,019.40
  6. Step 6: Final answer
    x = 197,081.10

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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.