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Finding the Fourth Proportional to 238,310.44, 328,897.56 and 137,708.44

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Solution

The fourth proportional to 238,310.44, 328,897.56 and 137,708.44 is: 190,054.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,310.44 : 328,897.56 = 137,708.44 : x
  2. Step 2: Convert to fraction form
    238,310.44/328,897.56 = 137,708.44/x
  3. Step 3: Cross multiply
    238,310.44x = 328,897.56 × 137,708.44
  4. Step 4: Simplify right side
    238,310.44x = 45,291,969,601.57
  5. Step 5: Solve for x
    x = 45,291,969,601.57/238,310.44
  6. Step 6: Final answer
    x = 190,054.49

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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.