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Finding the Fourth Proportional to 400,220.88, 600,331.52 and 163,563.31

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Solution

The fourth proportional to 400,220.88, 600,331.52 and 163,563.31 is: 245,345.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,220.88 : 600,331.52 = 163,563.31 : x
  2. Step 2: Convert to fraction form
    400,220.88/600,331.52 = 163,563.31/x
  3. Step 3: Cross multiply
    400,220.88x = 600,331.52 × 163,563.31
  4. Step 4: Simplify right side
    400,220.88x = 98,192,210,508.53
  5. Step 5: Solve for x
    x = 98,192,210,508.53/400,220.88
  6. Step 6: Final answer
    x = 245,345.05

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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.