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Finding the Fourth Proportional to 333.52, 459.40 and 281.01

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Solution

The fourth proportional to 333.52, 459.40 and 281.01 is: 387.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    333.52 : 459.40 = 281.01 : x
  2. Step 2: Convert to fraction form
    333.52/459.40 = 281.01/x
  3. Step 3: Cross multiply
    333.52x = 459.40 × 281.01
  4. Step 4: Simplify right side
    333.52x = 129,095.99
  5. Step 5: Solve for x
    x = 129,095.99/333.52
  6. Step 6: Final answer
    x = 387.07

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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.