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Finding the Fourth Proportional to 507.29, 699.83 and 297.47

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Solution

The fourth proportional to 507.29, 699.83 and 297.47 is: 410.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    507.29 : 699.83 = 297.47 : x
  2. Step 2: Convert to fraction form
    507.29/699.83 = 297.47/x
  3. Step 3: Cross multiply
    507.29x = 699.83 × 297.47
  4. Step 4: Simplify right side
    507.29x = 208,177.18
  5. Step 5: Solve for x
    x = 208,177.18/507.29
  6. Step 6: Final answer
    x = 410.38

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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.