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Finding the Fourth Proportional to 607.68, 912.22 and 348.66

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Solution

The fourth proportional to 607.68, 912.22 and 348.66 is: 523.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.68 : 912.22 = 348.66 : x
  2. Step 2: Convert to fraction form
    607.68/912.22 = 348.66/x
  3. Step 3: Cross multiply
    607.68x = 912.22 × 348.66
  4. Step 4: Simplify right side
    607.68x = 318,054.63
  5. Step 5: Solve for x
    x = 318,054.63/607.68
  6. Step 6: Final answer
    x = 523.39

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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.