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Finding the Fourth Proportional to 238,240.60, 328,769.75 and 130,809.69

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Solution

The fourth proportional to 238,240.60, 328,769.75 and 130,809.69 is: 180,516.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,240.60 : 328,769.75 = 130,809.69 : x
  2. Step 2: Convert to fraction form
    238,240.60/328,769.75 = 130,809.69/x
  3. Step 3: Cross multiply
    238,240.60x = 328,769.75 × 130,809.69
  4. Step 4: Simplify right side
    238,240.60x = 43,006,269,405.90
  5. Step 5: Solve for x
    x = 43,006,269,405.90/238,240.60
  6. Step 6: Final answer
    x = 180,516.12

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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.