Home / 240,645.20-331,945.09-154,575.20

Finding the Fourth Proportional to 240,645.20, 331,945.09 and 154,575.20

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Solution

The fourth proportional to 240,645.20, 331,945.09 and 154,575.20 is: 213,220.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,645.20 : 331,945.09 = 154,575.20 : x
  2. Step 2: Convert to fraction form
    240,645.20/331,945.09 = 154,575.20/x
  3. Step 3: Cross multiply
    240,645.20x = 331,945.09 × 154,575.20
  4. Step 4: Simplify right side
    240,645.20x = 51,310,479,119.19
  5. Step 5: Solve for x
    x = 51,310,479,119.19/240,645.20
  6. Step 6: Final answer
    x = 213,220.46

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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.