Home / 240,189.23-331,486.83-138,219.14

Finding the Fourth Proportional to 240,189.23, 331,486.83 and 138,219.14

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Solution

The fourth proportional to 240,189.23, 331,486.83 and 138,219.14 is: 190,757.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,189.23 : 331,486.83 = 138,219.14 : x
  2. Step 2: Convert to fraction form
    240,189.23/331,486.83 = 138,219.14/x
  3. Step 3: Cross multiply
    240,189.23x = 331,486.83 × 138,219.14
  4. Step 4: Simplify right side
    240,189.23x = 45,817,822,906.49
  5. Step 5: Solve for x
    x = 45,817,822,906.49/240,189.23
  6. Step 6: Final answer
    x = 190,757.20

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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.