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Finding the Fourth Proportional to 445.61, 669.15 and 335.93

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Solution

The fourth proportional to 445.61, 669.15 and 335.93 is: 504.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    445.61 : 669.15 = 335.93 : x
  2. Step 2: Convert to fraction form
    445.61/669.15 = 335.93/x
  3. Step 3: Cross multiply
    445.61x = 669.15 × 335.93
  4. Step 4: Simplify right side
    445.61x = 224,784.21
  5. Step 5: Solve for x
    x = 224,784.21/445.61
  6. Step 6: Final answer
    x = 504.45

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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.