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Finding the Fourth Proportional to 281,768.71, 388,880.69 and 174,373.33

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Solution

The fourth proportional to 281,768.71, 388,880.69 and 174,373.33 is: 240,659.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,768.71 : 388,880.69 = 174,373.33 : x
  2. Step 2: Convert to fraction form
    281,768.71/388,880.69 = 174,373.33/x
  3. Step 3: Cross multiply
    281,768.71x = 388,880.69 × 174,373.33
  4. Step 4: Simplify right side
    281,768.71x = 67,810,418,071.73
  5. Step 5: Solve for x
    x = 67,810,418,071.73/281,768.71
  6. Step 6: Final answer
    x = 240,659.86

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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.