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Finding the Fourth Proportional to 607.38, 910.46 and 260.86

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Solution

The fourth proportional to 607.38, 910.46 and 260.86 is: 391.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.38 : 910.46 = 260.86 : x
  2. Step 2: Convert to fraction form
    607.38/910.46 = 260.86/x
  3. Step 3: Cross multiply
    607.38x = 910.46 × 260.86
  4. Step 4: Simplify right side
    607.38x = 237,502.60
  5. Step 5: Solve for x
    x = 237,502.60/607.38
  6. Step 6: Final answer
    x = 391.03

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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.