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Finding the Fourth Proportional to 238,321.68, 328,891.79 and 136,347.33

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Solution

The fourth proportional to 238,321.68, 328,891.79 and 136,347.33 is: 188,163.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,321.68 : 328,891.79 = 136,347.33 : x
  2. Step 2: Convert to fraction form
    238,321.68/328,891.79 = 136,347.33/x
  3. Step 3: Cross multiply
    238,321.68x = 328,891.79 × 136,347.33
  4. Step 4: Simplify right side
    238,321.68x = 44,843,518,999.63
  5. Step 5: Solve for x
    x = 44,843,518,999.63/238,321.68
  6. Step 6: Final answer
    x = 188,163.83

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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.