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Finding the Fourth Proportional to 477.96, 659.04 and 415.23

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Solution

The fourth proportional to 477.96, 659.04 and 415.23 is: 572.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    477.96 : 659.04 = 415.23 : x
  2. Step 2: Convert to fraction form
    477.96/659.04 = 415.23/x
  3. Step 3: Cross multiply
    477.96x = 659.04 × 415.23
  4. Step 4: Simplify right side
    477.96x = 273,653.18
  5. Step 5: Solve for x
    x = 273,653.18/477.96
  6. Step 6: Final answer
    x = 572.54

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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.