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Finding the Fourth Proportional to 473.84, 653.68 and 326.68

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Solution

The fourth proportional to 473.84, 653.68 and 326.68 is: 450.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    473.84 : 653.68 = 326.68 : x
  2. Step 2: Convert to fraction form
    473.84/653.68 = 326.68/x
  3. Step 3: Cross multiply
    473.84x = 653.68 × 326.68
  4. Step 4: Simplify right side
    473.84x = 213,544.18
  5. Step 5: Solve for x
    x = 213,544.18/473.84
  6. Step 6: Final answer
    x = 450.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.