Home / 438,919.26-658,378.83-123,376.16

Finding the Fourth Proportional to 438,919.26, 658,378.83 and 123,376.16

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Solution

The fourth proportional to 438,919.26, 658,378.83 and 123,376.16 is: 185,064.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,919.26 : 658,378.83 = 123,376.16 : x
  2. Step 2: Convert to fraction form
    438,919.26/658,378.83 = 123,376.16/x
  3. Step 3: Cross multiply
    438,919.26x = 658,378.83 × 123,376.16
  4. Step 4: Simplify right side
    438,919.26x = 81,228,253,979.30
  5. Step 5: Solve for x
    x = 81,228,253,979.30/438,919.26
  6. Step 6: Final answer
    x = 185,064.23

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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.