Home / 278,940.33-384,938.19-151,615.62

Finding the Fourth Proportional to 278,940.33, 384,938.19 and 151,615.62

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Solution

The fourth proportional to 278,940.33, 384,938.19 and 151,615.62 is: 209,229.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,940.33 : 384,938.19 = 151,615.62 : x
  2. Step 2: Convert to fraction form
    278,940.33/384,938.19 = 151,615.62/x
  3. Step 3: Cross multiply
    278,940.33x = 384,938.19 × 151,615.62
  4. Step 4: Simplify right side
    278,940.33x = 58,362,642,338.53
  5. Step 5: Solve for x
    x = 58,362,642,338.53/278,940.33
  6. Step 6: Final answer
    x = 209,229.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.