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Finding the Fourth Proportional to 526.64, 726.87 and 361.06

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Solution

The fourth proportional to 526.64, 726.87 and 361.06 is: 498.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    526.64 : 726.87 = 361.06 : x
  2. Step 2: Convert to fraction form
    526.64/726.87 = 361.06/x
  3. Step 3: Cross multiply
    526.64x = 726.87 × 361.06
  4. Step 4: Simplify right side
    526.64x = 262,443.68
  5. Step 5: Solve for x
    x = 262,443.68/526.64
  6. Step 6: Final answer
    x = 498.34

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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.