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Finding the Fourth Proportional to 563.11, 777.27 and 458.12

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Solution

The fourth proportional to 563.11, 777.27 and 458.12 is: 632.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    563.11 : 777.27 = 458.12 : x
  2. Step 2: Convert to fraction form
    563.11/777.27 = 458.12/x
  3. Step 3: Cross multiply
    563.11x = 777.27 × 458.12
  4. Step 4: Simplify right side
    563.11x = 356,079.05
  5. Step 5: Solve for x
    x = 356,079.05/563.11
  6. Step 6: Final answer
    x = 632.35

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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.