Home / 240,170.90-331,438.30-131,278.35

Finding the Fourth Proportional to 240,170.90, 331,438.30 and 131,278.35

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Solution

The fourth proportional to 240,170.90, 331,438.30 and 131,278.35 is: 181,165.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,170.90 : 331,438.30 = 131,278.35 : x
  2. Step 2: Convert to fraction form
    240,170.90/331,438.30 = 131,278.35/x
  3. Step 3: Cross multiply
    240,170.90x = 331,438.30 × 131,278.35
  4. Step 4: Simplify right side
    240,170.90x = 43,510,673,150.81
  5. Step 5: Solve for x
    x = 43,510,673,150.81/240,170.90
  6. Step 6: Final answer
    x = 181,165.47

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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.