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Finding the Fourth Proportional to 607.05, 910.21 and 294.55

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Solution

The fourth proportional to 607.05, 910.21 and 294.55 is: 441.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.05 : 910.21 = 294.55 : x
  2. Step 2: Convert to fraction form
    607.05/910.21 = 294.55/x
  3. Step 3: Cross multiply
    607.05x = 910.21 × 294.55
  4. Step 4: Simplify right side
    607.05x = 268,102.36
  5. Step 5: Solve for x
    x = 268,102.36/607.05
  6. Step 6: Final answer
    x = 441.65

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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.