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Finding the Fourth Proportional to 335.74, 503.58 and 130.36

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Solution

The fourth proportional to 335.74, 503.58 and 130.36 is: 195.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.74 : 503.58 = 130.36 : x
  2. Step 2: Convert to fraction form
    335.74/503.58 = 130.36/x
  3. Step 3: Cross multiply
    335.74x = 503.58 × 130.36
  4. Step 4: Simplify right side
    335.74x = 65,646.69
  5. Step 5: Solve for x
    x = 65,646.69/335.74
  6. Step 6: Final answer
    x = 195.53

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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.