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Finding the Fourth Proportional to 410.86, 566.95 and 245.05

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Solution

The fourth proportional to 410.86, 566.95 and 245.05 is: 338.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    410.86 : 566.95 = 245.05 : x
  2. Step 2: Convert to fraction form
    410.86/566.95 = 245.05/x
  3. Step 3: Cross multiply
    410.86x = 566.95 × 245.05
  4. Step 4: Simplify right side
    410.86x = 138,929.87
  5. Step 5: Solve for x
    x = 138,929.87/410.86
  6. Step 6: Final answer
    x = 338.14

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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.