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Finding the Fourth Proportional to 454.67, 683.15 and 368.16

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Solution

The fourth proportional to 454.67, 683.15 and 368.16 is: 553.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    454.67 : 683.15 = 368.16 : x
  2. Step 2: Convert to fraction form
    454.67/683.15 = 368.16/x
  3. Step 3: Cross multiply
    454.67x = 683.15 × 368.16
  4. Step 4: Simplify right side
    454.67x = 251,506.66
  5. Step 5: Solve for x
    x = 251,506.66/454.67
  6. Step 6: Final answer
    x = 553.17

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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.