Home / 281,748.72-422,489.30-163,456.32

Finding the Fourth Proportional to 281,748.72, 422,489.30 and 163,456.32

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Solution

The fourth proportional to 281,748.72, 422,489.30 and 163,456.32 is: 245,106.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,748.72 : 422,489.30 = 163,456.32 : x
  2. Step 2: Convert to fraction form
    281,748.72/422,489.30 = 163,456.32/x
  3. Step 3: Cross multiply
    281,748.72x = 422,489.30 × 163,456.32
  4. Step 4: Simplify right side
    281,748.72x = 69,058,545,400.09
  5. Step 5: Solve for x
    x = 69,058,545,400.09/281,748.72
  6. Step 6: Final answer
    x = 245,106.86

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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.