Home / 331,218.80-496,585.20-131,440.40

Finding the Fourth Proportional to 331,218.80, 496,585.20 and 131,440.40

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Solution

The fourth proportional to 331,218.80, 496,585.20 and 131,440.40 is: 197,064.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,218.80 : 496,585.20 = 131,440.40 : x
  2. Step 2: Convert to fraction form
    331,218.80/496,585.20 = 131,440.40/x
  3. Step 3: Cross multiply
    331,218.80x = 496,585.20 × 131,440.40
  4. Step 4: Simplify right side
    331,218.80x = 65,271,357,322.08
  5. Step 5: Solve for x
    x = 65,271,357,322.08/331,218.80
  6. Step 6: Final answer
    x = 197,064.17

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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.