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Finding the Fourth Proportional to 266,164.60, 399,246.90 and 239,920.60

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Solution

The fourth proportional to 266,164.60, 399,246.90 and 239,920.60 is: 359,880.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,164.60 : 399,246.90 = 239,920.60 : x
  2. Step 2: Convert to fraction form
    266,164.60/399,246.90 = 239,920.60/x
  3. Step 3: Cross multiply
    266,164.60x = 399,246.90 × 239,920.60
  4. Step 4: Simplify right side
    266,164.60x = 95,787,555,796.14
  5. Step 5: Solve for x
    x = 95,787,555,796.14/266,164.60
  6. Step 6: Final answer
    x = 359,880.90

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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.