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Finding the Fourth Proportional to 671.64, 925.99 and 435.17

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Solution

The fourth proportional to 671.64, 925.99 and 435.17 is: 599.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    671.64 : 925.99 = 435.17 : x
  2. Step 2: Convert to fraction form
    671.64/925.99 = 435.17/x
  3. Step 3: Cross multiply
    671.64x = 925.99 × 435.17
  4. Step 4: Simplify right side
    671.64x = 402,959.67
  5. Step 5: Solve for x
    x = 402,959.67/671.64
  6. Step 6: Final answer
    x = 599.97

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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.