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Finding the Fourth Proportional to 365.79, 545.90 and 322.46

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Solution

The fourth proportional to 365.79, 545.90 and 322.46 is: 481.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    365.79 : 545.90 = 322.46 : x
  2. Step 2: Convert to fraction form
    365.79/545.90 = 322.46/x
  3. Step 3: Cross multiply
    365.79x = 545.90 × 322.46
  4. Step 4: Simplify right side
    365.79x = 176,030.91
  5. Step 5: Solve for x
    x = 176,030.91/365.79
  6. Step 6: Final answer
    x = 481.23

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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.