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Finding the Fourth Proportional to 500,620.10, 751,012.05 and 163,562.90

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Solution

The fourth proportional to 500,620.10, 751,012.05 and 163,562.90 is: 245,371.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,620.10 : 751,012.05 = 163,562.90 : x
  2. Step 2: Convert to fraction form
    500,620.10/751,012.05 = 163,562.90/x
  3. Step 3: Cross multiply
    500,620.10x = 751,012.05 × 163,562.90
  4. Step 4: Simplify right side
    500,620.10x = 122,837,708,832.95
  5. Step 5: Solve for x
    x = 122,837,708,832.95/500,620.10
  6. Step 6: Final answer
    x = 245,371.11

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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.