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Finding the Fourth Proportional to 239,246.09, 330,167.09 and 137,290.22

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Solution

The fourth proportional to 239,246.09, 330,167.09 and 137,290.22 is: 189,464.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,246.09 : 330,167.09 = 137,290.22 : x
  2. Step 2: Convert to fraction form
    239,246.09/330,167.09 = 137,290.22/x
  3. Step 3: Cross multiply
    239,246.09x = 330,167.09 × 137,290.22
  4. Step 4: Simplify right side
    239,246.09x = 45,328,712,422.86
  5. Step 5: Solve for x
    x = 45,328,712,422.86/239,246.09
  6. Step 6: Final answer
    x = 189,464.80

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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.