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Finding the Fourth Proportional to 477.47, 659.27 and 379.06

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Solution

The fourth proportional to 477.47, 659.27 and 379.06 is: 523.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    477.47 : 659.27 = 379.06 : x
  2. Step 2: Convert to fraction form
    477.47/659.27 = 379.06/x
  3. Step 3: Cross multiply
    477.47x = 659.27 × 379.06
  4. Step 4: Simplify right side
    477.47x = 249,902.89
  5. Step 5: Solve for x
    x = 249,902.89/477.47
  6. Step 6: Final answer
    x = 523.39

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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.