Home / 278,823.78-417,947.90-110,275.79

Finding the Fourth Proportional to 278,823.78, 417,947.90 and 110,275.79

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Solution

The fourth proportional to 278,823.78, 417,947.90 and 110,275.79 is: 165,299.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,823.78 : 417,947.90 = 110,275.79 : x
  2. Step 2: Convert to fraction form
    278,823.78/417,947.90 = 110,275.79/x
  3. Step 3: Cross multiply
    278,823.78x = 417,947.90 × 110,275.79
  4. Step 4: Simplify right side
    278,823.78x = 46,089,532,210.22
  5. Step 5: Solve for x
    x = 46,089,532,210.22/278,823.78
  6. Step 6: Final answer
    x = 165,299.86

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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.