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Finding the Fourth Proportional to 364.18, 545.10 and 190.61

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Solution

The fourth proportional to 364.18, 545.10 and 190.61 is: 285.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    364.18 : 545.10 = 190.61 : x
  2. Step 2: Convert to fraction form
    364.18/545.10 = 190.61/x
  3. Step 3: Cross multiply
    364.18x = 545.10 × 190.61
  4. Step 4: Simplify right side
    364.18x = 103,901.51
  5. Step 5: Solve for x
    x = 103,901.51/364.18
  6. Step 6: Final answer
    x = 285.30

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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.