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Finding the Fourth Proportional to 269,455.78, 404,248.60 and 100,977.58

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Solution

The fourth proportional to 269,455.78, 404,248.60 and 100,977.58 is: 151,490.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,455.78 : 404,248.60 = 100,977.58 : x
  2. Step 2: Convert to fraction form
    269,455.78/404,248.60 = 100,977.58/x
  3. Step 3: Cross multiply
    269,455.78x = 404,248.60 × 100,977.58
  4. Step 4: Simplify right side
    269,455.78x = 40,820,043,325.15
  5. Step 5: Solve for x
    x = 40,820,043,325.15/269,455.78
  6. Step 6: Final answer
    x = 151,490.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.