Home / 278,111.20-417,069.60-144,947.20

Finding the Fourth Proportional to 278,111.20, 417,069.60 and 144,947.20

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Solution

The fourth proportional to 278,111.20, 417,069.60 and 144,947.20 is: 217,370.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,111.20 : 417,069.60 = 144,947.20 : x
  2. Step 2: Convert to fraction form
    278,111.20/417,069.60 = 144,947.20/x
  3. Step 3: Cross multiply
    278,111.20x = 417,069.60 × 144,947.20
  4. Step 4: Simplify right side
    278,111.20x = 60,453,070,725.12
  5. Step 5: Solve for x
    x = 60,453,070,725.12/278,111.20
  6. Step 6: Final answer
    x = 217,370.14

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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.