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Finding the Fourth Proportional to 379.03, 567.55 and 318.01

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Solution

The fourth proportional to 379.03, 567.55 and 318.01 is: 476.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    379.03 : 567.55 = 318.01 : x
  2. Step 2: Convert to fraction form
    379.03/567.55 = 318.01/x
  3. Step 3: Cross multiply
    379.03x = 567.55 × 318.01
  4. Step 4: Simplify right side
    379.03x = 180,486.58
  5. Step 5: Solve for x
    x = 180,486.58/379.03
  6. Step 6: Final answer
    x = 476.18

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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.