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Finding the Fourth Proportional to 283,338.60, 425,007.90 and 266,717.40

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Solution

The fourth proportional to 283,338.60, 425,007.90 and 266,717.40 is: 400,076.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,338.60 : 425,007.90 = 266,717.40 : x
  2. Step 2: Convert to fraction form
    283,338.60/425,007.90 = 266,717.40/x
  3. Step 3: Cross multiply
    283,338.60x = 425,007.90 × 266,717.40
  4. Step 4: Simplify right side
    283,338.60x = 113,357,002,067.46
  5. Step 5: Solve for x
    x = 113,357,002,067.46/283,338.60
  6. Step 6: Final answer
    x = 400,076.10

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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.