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Finding the Fourth Proportional to 508.17, 700.33 and 397.47

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Solution

The fourth proportional to 508.17, 700.33 and 397.47 is: 547.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    508.17 : 700.33 = 397.47 : x
  2. Step 2: Convert to fraction form
    508.17/700.33 = 397.47/x
  3. Step 3: Cross multiply
    508.17x = 700.33 × 397.47
  4. Step 4: Simplify right side
    508.17x = 278,360.17
  5. Step 5: Solve for x
    x = 278,360.17/508.17
  6. Step 6: Final answer
    x = 547.77

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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.