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Finding the Fourth Proportional to 238,326.89, 328,890.11 and 130,896.59

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Solution

The fourth proportional to 238,326.89, 328,890.11 and 130,896.59 is: 180,636.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,326.89 : 328,890.11 = 130,896.59 : x
  2. Step 2: Convert to fraction form
    238,326.89/328,890.11 = 130,896.59/x
  3. Step 3: Cross multiply
    238,326.89x = 328,890.11 × 130,896.59
  4. Step 4: Simplify right side
    238,326.89x = 43,050,591,584.79
  5. Step 5: Solve for x
    x = 43,050,591,584.79/238,326.89
  6. Step 6: Final answer
    x = 180,636.74

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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.