Home / 349,316.20-523,844.70-138,910.60

Finding the Fourth Proportional to 349,316.20, 523,844.70 and 138,910.60

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Solution

The fourth proportional to 349,316.20, 523,844.70 and 138,910.60 is: 208,314.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,316.20 : 523,844.70 = 138,910.60 : x
  2. Step 2: Convert to fraction form
    349,316.20/523,844.70 = 138,910.60/x
  3. Step 3: Cross multiply
    349,316.20x = 523,844.70 × 138,910.60
  4. Step 4: Simplify right side
    349,316.20x = 72,767,581,583.82
  5. Step 5: Solve for x
    x = 72,767,581,583.82/349,316.20
  6. Step 6: Final answer
    x = 208,314.36

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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.