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Finding the Fourth Proportional to 201,387.70, 277,845.81 and 124,879.30

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Solution

The fourth proportional to 201,387.70, 277,845.81 and 124,879.30 is: 172,290.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,387.70 : 277,845.81 = 124,879.30 : x
  2. Step 2: Convert to fraction form
    201,387.70/277,845.81 = 124,879.30/x
  3. Step 3: Cross multiply
    201,387.70x = 277,845.81 × 124,879.30
  4. Step 4: Simplify right side
    201,387.70x = 34,697,190,260.73
  5. Step 5: Solve for x
    x = 34,697,190,260.73/201,387.70
  6. Step 6: Final answer
    x = 172,290.51

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1.5x scale

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.