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Finding the Fourth Proportional to 439.70, 657.03 and 335.00

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Solution

The fourth proportional to 439.70, 657.03 and 335.00 is: 500.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    439.70 : 657.03 = 335.00 : x
  2. Step 2: Convert to fraction form
    439.70/657.03 = 335.00/x
  3. Step 3: Cross multiply
    439.70x = 657.03 × 335.00
  4. Step 4: Simplify right side
    439.70x = 220,106.06
  5. Step 5: Solve for x
    x = 220,106.06/439.70
  6. Step 6: Final answer
    x = 500.59

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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.