Home / 353,861.32-487,759.46-239,104.12

Finding the Fourth Proportional to 353,861.32, 487,759.46 and 239,104.12

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Solution

The fourth proportional to 353,861.32, 487,759.46 and 239,104.12 is: 329,579.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,861.32 : 487,759.46 = 239,104.12 : x
  2. Step 2: Convert to fraction form
    353,861.32/487,759.46 = 239,104.12/x
  3. Step 3: Cross multiply
    353,861.32x = 487,759.46 × 239,104.12
  4. Step 4: Simplify right side
    353,861.32x = 116,625,296,454.98
  5. Step 5: Solve for x
    x = 116,625,296,454.98/353,861.32
  6. Step 6: Final answer
    x = 329,579.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.