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Finding the Fourth Proportional to 507.91, 700.92 and 275.04

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Solution

The fourth proportional to 507.91, 700.92 and 275.04 is: 379.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    507.91 : 700.92 = 275.04 : x
  2. Step 2: Convert to fraction form
    507.91/700.92 = 275.04/x
  3. Step 3: Cross multiply
    507.91x = 700.92 × 275.04
  4. Step 4: Simplify right side
    507.91x = 192,776.16
  5. Step 5: Solve for x
    x = 192,776.16/507.91
  6. Step 6: Final answer
    x = 379.55

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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.