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Finding the Fourth Proportional to 364.79, 544.13 and 325.91

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Solution

The fourth proportional to 364.79, 544.13 and 325.91 is: 486.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    364.79 : 544.13 = 325.91 : x
  2. Step 2: Convert to fraction form
    364.79/544.13 = 325.91/x
  3. Step 3: Cross multiply
    364.79x = 544.13 × 325.91
  4. Step 4: Simplify right side
    364.79x = 177,333.06
  5. Step 5: Solve for x
    x = 177,333.06/364.79
  6. Step 6: Final answer
    x = 486.13

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.