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Finding the Fourth Proportional to 510.39, 703.89 and 335.70

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Solution

The fourth proportional to 510.39, 703.89 and 335.70 is: 462.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    510.39 : 703.89 = 335.70 : x
  2. Step 2: Convert to fraction form
    510.39/703.89 = 335.70/x
  3. Step 3: Cross multiply
    510.39x = 703.89 × 335.70
  4. Step 4: Simplify right side
    510.39x = 236,295.87
  5. Step 5: Solve for x
    x = 236,295.87/510.39
  6. Step 6: Final answer
    x = 462.97

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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.