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Finding the Fourth Proportional to 368.82, 549.63 and 357.69

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Solution

The fourth proportional to 368.82, 549.63 and 357.69 is: 533.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    368.82 : 549.63 = 357.69 : x
  2. Step 2: Convert to fraction form
    368.82/549.63 = 357.69/x
  3. Step 3: Cross multiply
    368.82x = 549.63 × 357.69
  4. Step 4: Simplify right side
    368.82x = 196,597.15
  5. Step 5: Solve for x
    x = 196,597.15/368.82
  6. Step 6: Final answer
    x = 533.04

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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.