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Finding the Fourth Proportional to 201,772.36, 278,453 and 125,333.32

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Solution

The fourth proportional to 201,772.36, 278,453 and 125,333.32 is: 172,964.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,772.36 : 278,453 = 125,333.32 : x
  2. Step 2: Convert to fraction form
    201,772.36/278,453 = 125,333.32/x
  3. Step 3: Cross multiply
    201,772.36x = 278,453 × 125,333.32
  4. Step 4: Simplify right side
    201,772.36x = 34,899,438,953.96
  5. Step 5: Solve for x
    x = 34,899,438,953.96/201,772.36
  6. Step 6: Final answer
    x = 172,964.42

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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.