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Finding the Fourth Proportional to 899.38, 1,349.10 and 283.08

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Solution

The fourth proportional to 899.38, 1,349.10 and 283.08 is: 424.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    899.38 : 1,349.10 = 283.08 : x
  2. Step 2: Convert to fraction form
    899.38/1,349.10 = 283.08/x
  3. Step 3: Cross multiply
    899.38x = 1,349.10 × 283.08
  4. Step 4: Simplify right side
    899.38x = 381,903.23
  5. Step 5: Solve for x
    x = 381,903.23/899.38
  6. Step 6: Final answer
    x = 424.63

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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.