Home / 278,224.41-417,056.20-109,679.51

Finding the Fourth Proportional to 278,224.41, 417,056.20 and 109,679.51

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Solution

The fourth proportional to 278,224.41, 417,056.20 and 109,679.51 is: 164,408.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,224.41 : 417,056.20 = 109,679.51 : x
  2. Step 2: Convert to fraction form
    278,224.41/417,056.20 = 109,679.51/x
  3. Step 3: Cross multiply
    278,224.41x = 417,056.20 × 109,679.51
  4. Step 4: Simplify right side
    278,224.41x = 45,742,517,298.98
  5. Step 5: Solve for x
    x = 45,742,517,298.98/278,224.41
  6. Step 6: Final answer
    x = 164,408.71

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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.