Home / 239,438.18-330,411.41-137,456.91

Finding the Fourth Proportional to 239,438.18, 330,411.41 and 137,456.91

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Solution

The fourth proportional to 239,438.18, 330,411.41 and 137,456.91 is: 189,682.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,438.18 : 330,411.41 = 137,456.91 : x
  2. Step 2: Convert to fraction form
    239,438.18/330,411.41 = 137,456.91/x
  3. Step 3: Cross multiply
    239,438.18x = 330,411.41 × 137,456.91
  4. Step 4: Simplify right side
    239,438.18x = 45,417,331,447.34
  5. Step 5: Solve for x
    x = 45,417,331,447.34/239,438.18
  6. Step 6: Final answer
    x = 189,682.91

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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.