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Finding the Fourth Proportional to 543.99, 750.81 and 323.07

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Solution

The fourth proportional to 543.99, 750.81 and 323.07 is: 445.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    543.99 : 750.81 = 323.07 : x
  2. Step 2: Convert to fraction form
    543.99/750.81 = 323.07/x
  3. Step 3: Cross multiply
    543.99x = 750.81 × 323.07
  4. Step 4: Simplify right side
    543.99x = 242,564.19
  5. Step 5: Solve for x
    x = 242,564.19/543.99
  6. Step 6: Final answer
    x = 445.90

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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.