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Finding the Fourth Proportional to 201,479.78, 278,042.70 and 110,845.04

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Solution

The fourth proportional to 201,479.78, 278,042.70 and 110,845.04 is: 152,966.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,479.78 : 278,042.70 = 110,845.04 : x
  2. Step 2: Convert to fraction form
    201,479.78/278,042.70 = 110,845.04/x
  3. Step 3: Cross multiply
    201,479.78x = 278,042.70 × 110,845.04
  4. Step 4: Simplify right side
    201,479.78x = 30,819,654,203.21
  5. Step 5: Solve for x
    x = 30,819,654,203.21/201,479.78
  6. Step 6: Final answer
    x = 152,966.49

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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.