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Finding the Fourth Proportional to 496,915.64, 745,451.87 and 212,608.03

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Solution

The fourth proportional to 496,915.64, 745,451.87 and 212,608.03 is: 318,945.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,915.64 : 745,451.87 = 212,608.03 : x
  2. Step 2: Convert to fraction form
    496,915.64/745,451.87 = 212,608.03/x
  3. Step 3: Cross multiply
    496,915.64x = 745,451.87 × 212,608.03
  4. Step 4: Simplify right side
    496,915.64x = 158,489,052,208.41
  5. Step 5: Solve for x
    x = 158,489,052,208.41/496,915.64
  6. Step 6: Final answer
    x = 318,945.59

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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.