Home / 238,478.45-329,084.78-136,504.71

Finding the Fourth Proportional to 238,478.45, 329,084.78 and 136,504.71

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Solution

The fourth proportional to 238,478.45, 329,084.78 and 136,504.71 is: 188,367.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,478.45 : 329,084.78 = 136,504.71 : x
  2. Step 2: Convert to fraction form
    238,478.45/329,084.78 = 136,504.71/x
  3. Step 3: Cross multiply
    238,478.45x = 329,084.78 × 136,504.71
  4. Step 4: Simplify right side
    238,478.45x = 44,921,621,776.79
  5. Step 5: Solve for x
    x = 44,921,621,776.79/238,478.45
  6. Step 6: Final answer
    x = 188,367.64

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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.