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Finding the Fourth Proportional to 440.88, 608.16 and 358.08

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Solution

The fourth proportional to 440.88, 608.16 and 358.08 is: 493.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    440.88 : 608.16 = 358.08 : x
  2. Step 2: Convert to fraction form
    440.88/608.16 = 358.08/x
  3. Step 3: Cross multiply
    440.88x = 608.16 × 358.08
  4. Step 4: Simplify right side
    440.88x = 217,769.93
  5. Step 5: Solve for x
    x = 217,769.93/440.88
  6. Step 6: Final answer
    x = 493.94

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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.