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Finding the Fourth Proportional to 266,929.20, 400,296.60 and 133,765.20

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Solution

The fourth proportional to 266,929.20, 400,296.60 and 133,765.20 is: 200,599.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,929.20 : 400,296.60 = 133,765.20 : x
  2. Step 2: Convert to fraction form
    266,929.20/400,296.60 = 133,765.20/x
  3. Step 3: Cross multiply
    266,929.20x = 400,296.60 × 133,765.20
  4. Step 4: Simplify right side
    266,929.20x = 53,545,754,758.32
  5. Step 5: Solve for x
    x = 53,545,754,758.32/266,929.20
  6. Step 6: Final answer
    x = 200,599.09

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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.