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Finding the Fourth Proportional to 281,838.80, 388,731.48 and 179,934.32

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Solution

The fourth proportional to 281,838.80, 388,731.48 and 179,934.32 is: 248,177.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,838.80 : 388,731.48 = 179,934.32 : x
  2. Step 2: Convert to fraction form
    281,838.80/388,731.48 = 179,934.32/x
  3. Step 3: Cross multiply
    281,838.80x = 388,731.48 × 179,934.32
  4. Step 4: Simplify right side
    281,838.80x = 69,946,134,516.39
  5. Step 5: Solve for x
    x = 69,946,134,516.39/281,838.80
  6. Step 6: Final answer
    x = 248,177.80

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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.