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Finding the Fourth Proportional to 426.49, 588.54 and 260.71

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Solution

The fourth proportional to 426.49, 588.54 and 260.71 is: 359.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    426.49 : 588.54 = 260.71 : x
  2. Step 2: Convert to fraction form
    426.49/588.54 = 260.71/x
  3. Step 3: Cross multiply
    426.49x = 588.54 × 260.71
  4. Step 4: Simplify right side
    426.49x = 153,438.26
  5. Step 5: Solve for x
    x = 153,438.26/426.49
  6. Step 6: Final answer
    x = 359.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.