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Finding the Fourth Proportional to 335.80, 503.70 and 207.52

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Solution

The fourth proportional to 335.80, 503.70 and 207.52 is: 311.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.80 : 503.70 = 207.52 : x
  2. Step 2: Convert to fraction form
    335.80/503.70 = 207.52/x
  3. Step 3: Cross multiply
    335.80x = 503.70 × 207.52
  4. Step 4: Simplify right side
    335.80x = 104,527.82
  5. Step 5: Solve for x
    x = 104,527.82/335.80
  6. Step 6: Final answer
    x = 311.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.