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Finding the Fourth Proportional to 899.88, 1,349.72 and 352.50

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Solution

The fourth proportional to 899.88, 1,349.72 and 352.50 is: 528.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    899.88 : 1,349.72 = 352.50 : x
  2. Step 2: Convert to fraction form
    899.88/1,349.72 = 352.50/x
  3. Step 3: Cross multiply
    899.88x = 1,349.72 × 352.50
  4. Step 4: Simplify right side
    899.88x = 475,776.30
  5. Step 5: Solve for x
    x = 475,776.30/899.88
  6. Step 6: Final answer
    x = 528.71

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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.