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Finding the Fourth Proportional to 510.95, 704.75 and 342.82

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Solution

The fourth proportional to 510.95, 704.75 and 342.82 is: 472.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    510.95 : 704.75 = 342.82 : x
  2. Step 2: Convert to fraction form
    510.95/704.75 = 342.82/x
  3. Step 3: Cross multiply
    510.95x = 704.75 × 342.82
  4. Step 4: Simplify right side
    510.95x = 241,602.50
  5. Step 5: Solve for x
    x = 241,602.50/510.95
  6. Step 6: Final answer
    x = 472.85

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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.