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Finding the Fourth Proportional to 661,752.46, 992,144.75 and 212,217.44

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Solution

The fourth proportional to 661,752.46, 992,144.75 and 212,217.44 is: 318,170.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,752.46 : 992,144.75 = 212,217.44 : x
  2. Step 2: Convert to fraction form
    661,752.46/992,144.75 = 212,217.44/x
  3. Step 3: Cross multiply
    661,752.46x = 992,144.75 × 212,217.44
  4. Step 4: Simplify right side
    661,752.46x = 210,550,418,954.44
  5. Step 5: Solve for x
    x = 210,550,418,954.44/661,752.46
  6. Step 6: Final answer
    x = 318,170.97

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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.