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Finding the Fourth Proportional to 239,508.63, 330,506.79 and 137,462.25

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Solution

The fourth proportional to 239,508.63, 330,506.79 and 137,462.25 is: 189,689.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,508.63 : 330,506.79 = 137,462.25 : x
  2. Step 2: Convert to fraction form
    239,508.63/330,506.79 = 137,462.25/x
  3. Step 3: Cross multiply
    239,508.63x = 330,506.79 × 137,462.25
  4. Step 4: Simplify right side
    239,508.63x = 45,432,206,993.68
  5. Step 5: Solve for x
    x = 45,432,206,993.68/239,508.63
  6. Step 6: Final answer
    x = 189,689.23

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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.