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Finding the Fourth Proportional to 526, 726.18 and 371.08

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Solution

The fourth proportional to 526, 726.18 and 371.08 is: 512.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    526 : 726.18 = 371.08 : x
  2. Step 2: Convert to fraction form
    526/726.18 = 371.08/x
  3. Step 3: Cross multiply
    526x = 726.18 × 371.08
  4. Step 4: Simplify right side
    526x = 269,470.87
  5. Step 5: Solve for x
    x = 269,470.87/526
  6. Step 6: Final answer
    x = 512.30

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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.