Home / 356,112.75-491,434.29-203,150.68

Finding the Fourth Proportional to 356,112.75, 491,434.29 and 203,150.68

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Solution

The fourth proportional to 356,112.75, 491,434.29 and 203,150.68 is: 280,347.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,112.75 : 491,434.29 = 203,150.68 : x
  2. Step 2: Convert to fraction form
    356,112.75/491,434.29 = 203,150.68/x
  3. Step 3: Cross multiply
    356,112.75x = 491,434.29 × 203,150.68
  4. Step 4: Simplify right side
    356,112.75x = 99,835,211,724.55
  5. Step 5: Solve for x
    x = 99,835,211,724.55/356,112.75
  6. Step 6: Final answer
    x = 280,347.20

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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.