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Finding the Fourth Proportional to 899.76, 1,349.64 and 250.48

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Solution

The fourth proportional to 899.76, 1,349.64 and 250.48 is: 375.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    899.76 : 1,349.64 = 250.48 : x
  2. Step 2: Convert to fraction form
    899.76/1,349.64 = 250.48/x
  3. Step 3: Cross multiply
    899.76x = 1,349.64 × 250.48
  4. Step 4: Simplify right side
    899.76x = 338,057.83
  5. Step 5: Solve for x
    x = 338,057.83/899.76
  6. Step 6: Final answer
    x = 375.72

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Double scale
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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.