Home / 279,828.02-419,738.13-159,628.45

Finding the Fourth Proportional to 279,828.02, 419,738.13 and 159,628.45

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Solution

The fourth proportional to 279,828.02, 419,738.13 and 159,628.45 is: 239,440.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,828.02 : 419,738.13 = 159,628.45 : x
  2. Step 2: Convert to fraction form
    279,828.02/419,738.13 = 159,628.45/x
  3. Step 3: Cross multiply
    279,828.02x = 419,738.13 × 159,628.45
  4. Step 4: Simplify right side
    279,828.02x = 67,002,147,810.87
  5. Step 5: Solve for x
    x = 67,002,147,810.87/279,828.02
  6. Step 6: Final answer
    x = 239,440.45

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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.