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Finding the Fourth Proportional to 561.04, 773.12 and 374.32

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Solution

The fourth proportional to 561.04, 773.12 and 374.32 is: 515.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    561.04 : 773.12 = 374.32 : x
  2. Step 2: Convert to fraction form
    561.04/773.12 = 374.32/x
  3. Step 3: Cross multiply
    561.04x = 773.12 × 374.32
  4. Step 4: Simplify right side
    561.04x = 289,394.28
  5. Step 5: Solve for x
    x = 289,394.28/561.04
  6. Step 6: Final answer
    x = 515.82

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Double scale
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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.