Home / 239,302.78-330,233.56-130,408.06

Finding the Fourth Proportional to 239,302.78, 330,233.56 and 130,408.06

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Solution

The fourth proportional to 239,302.78, 330,233.56 and 130,408.06 is: 179,960.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,302.78 : 330,233.56 = 130,408.06 : x
  2. Step 2: Convert to fraction form
    239,302.78/330,233.56 = 130,408.06/x
  3. Step 3: Cross multiply
    239,302.78x = 330,233.56 × 130,408.06
  4. Step 4: Simplify right side
    239,302.78x = 43,065,117,906.49
  5. Step 5: Solve for x
    x = 43,065,117,906.49/239,302.78
  6. Step 6: Final answer
    x = 179,960.79

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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.