Home / 279,853.22-419,842.20-102,356.30

Finding the Fourth Proportional to 279,853.22, 419,842.20 and 102,356.30

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Solution

The fourth proportional to 279,853.22, 419,842.20 and 102,356.30 is: 153,557.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,853.22 : 419,842.20 = 102,356.30 : x
  2. Step 2: Convert to fraction form
    279,853.22/419,842.20 = 102,356.30/x
  3. Step 3: Cross multiply
    279,853.22x = 419,842.20 × 102,356.30
  4. Step 4: Simplify right side
    279,853.22x = 42,973,494,175.86
  5. Step 5: Solve for x
    x = 42,973,494,175.86/279,853.22
  6. Step 6: Final answer
    x = 153,557.26

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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.