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Finding the Fourth Proportional to 342.28, 510.53 and 335.80

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Solution

The fourth proportional to 342.28, 510.53 and 335.80 is: 500.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    342.28 : 510.53 = 335.80 : x
  2. Step 2: Convert to fraction form
    342.28/510.53 = 335.80/x
  3. Step 3: Cross multiply
    342.28x = 510.53 × 335.80
  4. Step 4: Simplify right side
    342.28x = 171,435.97
  5. Step 5: Solve for x
    x = 171,435.97/342.28
  6. Step 6: Final answer
    x = 500.86

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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.