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Finding the Fourth Proportional to 410.13, 611.71 and 368.82

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Solution

The fourth proportional to 410.13, 611.71 and 368.82 is: 550.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    410.13 : 611.71 = 368.82 : x
  2. Step 2: Convert to fraction form
    410.13/611.71 = 368.82/x
  3. Step 3: Cross multiply
    410.13x = 611.71 × 368.82
  4. Step 4: Simplify right side
    410.13x = 225,609.96
  5. Step 5: Solve for x
    x = 225,609.96/410.13
  6. Step 6: Final answer
    x = 550.09

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.