Home / 279,905.02-419,814.24-102,370.51

Finding the Fourth Proportional to 279,905.02, 419,814.24 and 102,370.51

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Solution

The fourth proportional to 279,905.02, 419,814.24 and 102,370.51 is: 153,539.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,905.02 : 419,814.24 = 102,370.51 : x
  2. Step 2: Convert to fraction form
    279,905.02/419,814.24 = 102,370.51/x
  3. Step 3: Cross multiply
    279,905.02x = 419,814.24 × 102,370.51
  4. Step 4: Simplify right side
    279,905.02x = 42,976,597,390.05
  5. Step 5: Solve for x
    x = 42,976,597,390.05/279,905.02
  6. Step 6: Final answer
    x = 153,539.93

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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.