Home / 239,419.20-330,398.52-137,451.27

Finding the Fourth Proportional to 239,419.20, 330,398.52 and 137,451.27

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Solution

The fourth proportional to 239,419.20, 330,398.52 and 137,451.27 is: 189,682.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,419.20 : 330,398.52 = 137,451.27 : x
  2. Step 2: Convert to fraction form
    239,419.20/330,398.52 = 137,451.27/x
  3. Step 3: Cross multiply
    239,419.20x = 330,398.52 × 137,451.27
  4. Step 4: Simplify right side
    239,419.20x = 45,413,696,180.12
  5. Step 5: Solve for x
    x = 45,413,696,180.12/239,419.20
  6. Step 6: Final answer
    x = 189,682.77

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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.