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Finding the Fourth Proportional to 561.46, 836.27 and 549.46

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Solution

The fourth proportional to 561.46, 836.27 and 549.46 is: 818.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    561.46 : 836.27 = 549.46 : x
  2. Step 2: Convert to fraction form
    561.46/836.27 = 549.46/x
  3. Step 3: Cross multiply
    561.46x = 836.27 × 549.46
  4. Step 4: Simplify right side
    561.46x = 459,496.91
  5. Step 5: Solve for x
    x = 459,496.91/561.46
  6. Step 6: Final answer
    x = 818.40

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.