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Finding the Fourth Proportional to 239,325.26, 330,264.90 and 137,346.54

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Solution

The fourth proportional to 239,325.26, 330,264.90 and 137,346.54 is: 189,535.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,325.26 : 330,264.90 = 137,346.54 : x
  2. Step 2: Convert to fraction form
    239,325.26/330,264.90 = 137,346.54/x
  3. Step 3: Cross multiply
    239,325.26x = 330,264.90 × 137,346.54
  4. Step 4: Simplify right side
    239,325.26x = 45,360,741,298.45
  5. Step 5: Solve for x
    x = 45,360,741,298.45/239,325.26
  6. Step 6: Final answer
    x = 189,535.95

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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.