Home / 349,546.60-523,974.30-138,903.40

Finding the Fourth Proportional to 349,546.60, 523,974.30 and 138,903.40

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Solution

The fourth proportional to 349,546.60, 523,974.30 and 138,903.40 is: 208,217.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,546.60 : 523,974.30 = 138,903.40 : x
  2. Step 2: Convert to fraction form
    349,546.60/523,974.30 = 138,903.40/x
  3. Step 3: Cross multiply
    349,546.60x = 523,974.30 × 138,903.40
  4. Step 4: Simplify right side
    349,546.60x = 72,781,811,782.62
  5. Step 5: Solve for x
    x = 72,781,811,782.62/349,546.60
  6. Step 6: Final answer
    x = 208,217.76

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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.