Home / 278,009.20-416,916.60-144,845.20

Finding the Fourth Proportional to 278,009.20, 416,916.60 and 144,845.20

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Solution

The fourth proportional to 278,009.20, 416,916.60 and 144,845.20 is: 217,217.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,009.20 : 416,916.60 = 144,845.20 : x
  2. Step 2: Convert to fraction form
    278,009.20/416,916.60 = 144,845.20/x
  3. Step 3: Cross multiply
    278,009.20x = 416,916.60 × 144,845.20
  4. Step 4: Simplify right side
    278,009.20x = 60,388,368,310.32
  5. Step 5: Solve for x
    x = 60,388,368,310.32/278,009.20
  6. Step 6: Final answer
    x = 217,217.16

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1.5x scale

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.