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Finding the Fourth Proportional to 554.97, 832.57 and 208.31

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Solution

The fourth proportional to 554.97, 832.57 and 208.31 is: 312.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    554.97 : 832.57 = 208.31 : x
  2. Step 2: Convert to fraction form
    554.97/832.57 = 208.31/x
  3. Step 3: Cross multiply
    554.97x = 832.57 × 208.31
  4. Step 4: Simplify right side
    554.97x = 173,429.14
  5. Step 5: Solve for x
    x = 173,429.14/554.97
  6. Step 6: Final answer
    x = 312.50

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.