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Finding the Fourth Proportional to 561.08, 774.03 and 336.92

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Solution

The fourth proportional to 561.08, 774.03 and 336.92 is: 464.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    561.08 : 774.03 = 336.92 : x
  2. Step 2: Convert to fraction form
    561.08/774.03 = 336.92/x
  3. Step 3: Cross multiply
    561.08x = 774.03 × 336.92
  4. Step 4: Simplify right side
    561.08x = 260,786.19
  5. Step 5: Solve for x
    x = 260,786.19/561.08
  6. Step 6: Final answer
    x = 464.79

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1.5x scale

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.