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Finding the Fourth Proportional to 440.03, 606.93 and 282.67

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Solution

The fourth proportional to 440.03, 606.93 and 282.67 is: 389.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    440.03 : 606.93 = 282.67 : x
  2. Step 2: Convert to fraction form
    440.03/606.93 = 282.67/x
  3. Step 3: Cross multiply
    440.03x = 606.93 × 282.67
  4. Step 4: Simplify right side
    440.03x = 171,560.90
  5. Step 5: Solve for x
    x = 171,560.90/440.03
  6. Step 6: Final answer
    x = 389.88

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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.