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Finding the Fourth Proportional to 608.01, 908.16 and 521.59

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Solution

The fourth proportional to 608.01, 908.16 and 521.59 is: 779.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    608.01 : 908.16 = 521.59 : x
  2. Step 2: Convert to fraction form
    608.01/908.16 = 521.59/x
  3. Step 3: Cross multiply
    608.01x = 908.16 × 521.59
  4. Step 4: Simplify right side
    608.01x = 473,687.58
  5. Step 5: Solve for x
    x = 473,687.58/608.01
  6. Step 6: Final answer
    x = 779.08

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.