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Finding the Fourth Proportional to 565.10, 846.02 and 421.46

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Solution

The fourth proportional to 565.10, 846.02 and 421.46 is: 630.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    565.10 : 846.02 = 421.46 : x
  2. Step 2: Convert to fraction form
    565.10/846.02 = 421.46/x
  3. Step 3: Cross multiply
    565.10x = 846.02 × 421.46
  4. Step 4: Simplify right side
    565.10x = 356,563.59
  5. Step 5: Solve for x
    x = 356,563.59/565.10
  6. Step 6: Final answer
    x = 630.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.