Home / 278,457.45-417,733.56-109,889.57

Finding the Fourth Proportional to 278,457.45, 417,733.56 and 109,889.57

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Solution

The fourth proportional to 278,457.45, 417,733.56 and 109,889.57 is: 164,853.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,457.45 : 417,733.56 = 109,889.57 : x
  2. Step 2: Convert to fraction form
    278,457.45/417,733.56 = 109,889.57/x
  3. Step 3: Cross multiply
    278,457.45x = 417,733.56 × 109,889.57
  4. Step 4: Simplify right side
    278,457.45x = 45,904,559,194.30
  5. Step 5: Solve for x
    x = 45,904,559,194.30/278,457.45
  6. Step 6: Final answer
    x = 164,853.05

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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.