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Finding the Fourth Proportional to 526.41, 726.63 and 351.75

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Solution

The fourth proportional to 526.41, 726.63 and 351.75 is: 485.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    526.41 : 726.63 = 351.75 : x
  2. Step 2: Convert to fraction form
    526.41/726.63 = 351.75/x
  3. Step 3: Cross multiply
    526.41x = 726.63 × 351.75
  4. Step 4: Simplify right side
    526.41x = 255,592.10
  5. Step 5: Solve for x
    x = 255,592.10/526.41
  6. Step 6: Final answer
    x = 485.54

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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.