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Finding the Fourth Proportional to 238,969.64, 329,641.44 and 149,390.12

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Solution

The fourth proportional to 238,969.64, 329,641.44 and 149,390.12 is: 206,072.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,969.64 : 329,641.44 = 149,390.12 : x
  2. Step 2: Convert to fraction form
    238,969.64/329,641.44 = 149,390.12/x
  3. Step 3: Cross multiply
    238,969.64x = 329,641.44 × 149,390.12
  4. Step 4: Simplify right side
    238,969.64x = 49,245,174,278.57
  5. Step 5: Solve for x
    x = 49,245,174,278.57/238,969.64
  6. Step 6: Final answer
    x = 206,072.93

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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.