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Finding the Fourth Proportional to 670.98, 925.97 and 376.26

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Solution

The fourth proportional to 670.98, 925.97 and 376.26 is: 519.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    670.98 : 925.97 = 376.26 : x
  2. Step 2: Convert to fraction form
    670.98/925.97 = 376.26/x
  3. Step 3: Cross multiply
    670.98x = 925.97 × 376.26
  4. Step 4: Simplify right side
    670.98x = 348,405.47
  5. Step 5: Solve for x
    x = 348,405.47/670.98
  6. Step 6: Final answer
    x = 519.25

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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.