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Finding the Fourth Proportional to 322.04, 482.83 and 148.47

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Solution

The fourth proportional to 322.04, 482.83 and 148.47 is: 222.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    322.04 : 482.83 = 148.47 : x
  2. Step 2: Convert to fraction form
    322.04/482.83 = 148.47/x
  3. Step 3: Cross multiply
    322.04x = 482.83 × 148.47
  4. Step 4: Simplify right side
    322.04x = 71,685.77
  5. Step 5: Solve for x
    x = 71,685.77/322.04
  6. Step 6: Final answer
    x = 222.60

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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.