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Finding the Fourth Proportional to 496,806.40, 745,250.10 and 212,499.10

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Solution

The fourth proportional to 496,806.40, 745,250.10 and 212,499.10 is: 318,765.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,806.40 : 745,250.10 = 212,499.10 : x
  2. Step 2: Convert to fraction form
    496,806.40/745,250.10 = 212,499.10/x
  3. Step 3: Cross multiply
    496,806.40x = 745,250.10 × 212,499.10
  4. Step 4: Simplify right side
    496,806.40x = 158,364,975,524.91
  5. Step 5: Solve for x
    x = 158,364,975,524.91/496,806.40
  6. Step 6: Final answer
    x = 318,765.97

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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.