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Finding the Fourth Proportional to 607.88, 912.36 and 300.08

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Solution

The fourth proportional to 607.88, 912.36 and 300.08 is: 450.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.88 : 912.36 = 300.08 : x
  2. Step 2: Convert to fraction form
    607.88/912.36 = 300.08/x
  3. Step 3: Cross multiply
    607.88x = 912.36 × 300.08
  4. Step 4: Simplify right side
    607.88x = 273,780.99
  5. Step 5: Solve for x
    x = 273,780.99/607.88
  6. Step 6: Final answer
    x = 450.39

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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.