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Finding the Fourth Proportional to 412.47, 569.15 and 265.30

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Solution

The fourth proportional to 412.47, 569.15 and 265.30 is: 366.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    412.47 : 569.15 = 265.30 : x
  2. Step 2: Convert to fraction form
    412.47/569.15 = 265.30/x
  3. Step 3: Cross multiply
    412.47x = 569.15 × 265.30
  4. Step 4: Simplify right side
    412.47x = 150,992.75
  5. Step 5: Solve for x
    x = 150,992.75/412.47
  6. Step 6: Final answer
    x = 366.07

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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.