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Finding the Fourth Proportional to 201,385.70, 277,843.05 and 124,877.30

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Solution

The fourth proportional to 201,385.70, 277,843.05 and 124,877.30 is: 172,287.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,385.70 : 277,843.05 = 124,877.30 : x
  2. Step 2: Convert to fraction form
    201,385.70/277,843.05 = 124,877.30/x
  3. Step 3: Cross multiply
    201,385.70x = 277,843.05 × 124,877.30
  4. Step 4: Simplify right side
    201,385.70x = 34,696,289,907.77
  5. Step 5: Solve for x
    x = 34,696,289,907.77/201,385.70
  6. Step 6: Final answer
    x = 172,287.75

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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.