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Finding the Fourth Proportional to 239,246.36, 330,167.43 and 137,290.49

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Solution

The fourth proportional to 239,246.36, 330,167.43 and 137,290.49 is: 189,465.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,246.36 : 330,167.43 = 137,290.49 : x
  2. Step 2: Convert to fraction form
    239,246.36/330,167.43 = 137,290.49/x
  3. Step 3: Cross multiply
    239,246.36x = 330,167.43 × 137,290.49
  4. Step 4: Simplify right side
    239,246.36x = 45,328,846,595.90
  5. Step 5: Solve for x
    x = 45,328,846,595.90/239,246.36
  6. Step 6: Final answer
    x = 189,465.15

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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.