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Finding the Fourth Proportional to 655.41, 904.48 and 360.69

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Solution

The fourth proportional to 655.41, 904.48 and 360.69 is: 497.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    655.41 : 904.48 = 360.69 : x
  2. Step 2: Convert to fraction form
    655.41/904.48 = 360.69/x
  3. Step 3: Cross multiply
    655.41x = 904.48 × 360.69
  4. Step 4: Simplify right side
    655.41x = 326,236.89
  5. Step 5: Solve for x
    x = 326,236.89/655.41
  6. Step 6: Final answer
    x = 497.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.