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Finding the Fourth Proportional to 554.01, 829.71 and 279.24

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Solution

The fourth proportional to 554.01, 829.71 and 279.24 is: 418.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    554.01 : 829.71 = 279.24 : x
  2. Step 2: Convert to fraction form
    554.01/829.71 = 279.24/x
  3. Step 3: Cross multiply
    554.01x = 829.71 × 279.24
  4. Step 4: Simplify right side
    554.01x = 231,688.22
  5. Step 5: Solve for x
    x = 231,688.22/554.01
  6. Step 6: Final answer
    x = 418.20

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Double scale
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Similar ratio
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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.