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Finding the Fourth Proportional to 607.96, 912.38 and 242.85

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Solution

The fourth proportional to 607.96, 912.38 and 242.85 is: 364.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.96 : 912.38 = 242.85 : x
  2. Step 2: Convert to fraction form
    607.96/912.38 = 242.85/x
  3. Step 3: Cross multiply
    607.96x = 912.38 × 242.85
  4. Step 4: Simplify right side
    607.96x = 221,570.88
  5. Step 5: Solve for x
    x = 221,570.88/607.96
  6. Step 6: Final answer
    x = 364.45

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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.