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Finding the Fourth Proportional to 608.51, 908.28 and 559.71

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Solution

The fourth proportional to 608.51, 908.28 and 559.71 is: 835.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    608.51 : 908.28 = 559.71 : x
  2. Step 2: Convert to fraction form
    608.51/908.28 = 559.71/x
  3. Step 3: Cross multiply
    608.51x = 908.28 × 559.71
  4. Step 4: Simplify right side
    608.51x = 508,373.40
  5. Step 5: Solve for x
    x = 508,373.40/608.51
  6. Step 6: Final answer
    x = 835.44

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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.