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Finding the Fourth Proportional to 561.03, 841.39 and 195.72

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Solution

The fourth proportional to 561.03, 841.39 and 195.72 is: 293.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    561.03 : 841.39 = 195.72 : x
  2. Step 2: Convert to fraction form
    561.03/841.39 = 195.72/x
  3. Step 3: Cross multiply
    561.03x = 841.39 × 195.72
  4. Step 4: Simplify right side
    561.03x = 164,673.21
  5. Step 5: Solve for x
    x = 164,673.21/561.03
  6. Step 6: Final answer
    x = 293.52

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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.