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Finding the Fourth Proportional to 613.07, 918.81 and 304.26

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Solution

The fourth proportional to 613.07, 918.81 and 304.26 is: 455.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    613.07 : 918.81 = 304.26 : x
  2. Step 2: Convert to fraction form
    613.07/918.81 = 304.26/x
  3. Step 3: Cross multiply
    613.07x = 918.81 × 304.26
  4. Step 4: Simplify right side
    613.07x = 279,553.69
  5. Step 5: Solve for x
    x = 279,553.69/613.07
  6. Step 6: Final answer
    x = 455.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.