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Finding the Fourth Proportional to 521.84, 719.75 and 364.48

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Solution

The fourth proportional to 521.84, 719.75 and 364.48 is: 502.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    521.84 : 719.75 = 364.48 : x
  2. Step 2: Convert to fraction form
    521.84/719.75 = 364.48/x
  3. Step 3: Cross multiply
    521.84x = 719.75 × 364.48
  4. Step 4: Simplify right side
    521.84x = 262,334.48
  5. Step 5: Solve for x
    x = 262,334.48/521.84
  6. Step 6: Final answer
    x = 502.71

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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.