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Finding the Fourth Proportional to 322.64, 483.93 and 158.05

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Solution

The fourth proportional to 322.64, 483.93 and 158.05 is: 237.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    322.64 : 483.93 = 158.05 : x
  2. Step 2: Convert to fraction form
    322.64/483.93 = 158.05/x
  3. Step 3: Cross multiply
    322.64x = 483.93 × 158.05
  4. Step 4: Simplify right side
    322.64x = 76,482.72
  5. Step 5: Solve for x
    x = 76,482.72/322.64
  6. Step 6: Final answer
    x = 237.05

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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.