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Finding the Fourth Proportional to 266,950.40, 399,842.40 and 207,318.20

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Solution

The fourth proportional to 266,950.40, 399,842.40 and 207,318.20 is: 310,524.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,950.40 : 399,842.40 = 207,318.20 : x
  2. Step 2: Convert to fraction form
    266,950.40/399,842.40 = 207,318.20/x
  3. Step 3: Cross multiply
    266,950.40x = 399,842.40 × 207,318.20
  4. Step 4: Simplify right side
    266,950.40x = 82,894,606,651.68
  5. Step 5: Solve for x
    x = 82,894,606,651.68/266,950.40
  6. Step 6: Final answer
    x = 310,524.38

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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.