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Finding the Fourth Proportional to 412.79, 569.66 and 265.48

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Solution

The fourth proportional to 412.79, 569.66 and 265.48 is: 366.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    412.79 : 569.66 = 265.48 : x
  2. Step 2: Convert to fraction form
    412.79/569.66 = 265.48/x
  3. Step 3: Cross multiply
    412.79x = 569.66 × 265.48
  4. Step 4: Simplify right side
    412.79x = 151,230.59
  5. Step 5: Solve for x
    x = 151,230.59/412.79
  6. Step 6: Final answer
    x = 366.37

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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.