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Finding the Fourth Proportional to 539.01, 743.72 and 342.81

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Solution

The fourth proportional to 539.01, 743.72 and 342.81 is: 473.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    539.01 : 743.72 = 342.81 : x
  2. Step 2: Convert to fraction form
    539.01/743.72 = 342.81/x
  3. Step 3: Cross multiply
    539.01x = 743.72 × 342.81
  4. Step 4: Simplify right side
    539.01x = 254,952.94
  5. Step 5: Solve for x
    x = 254,952.94/539.01
  6. Step 6: Final answer
    x = 473.00

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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.