Home / 278,930.61-384,922.32-151,606.20

Finding the Fourth Proportional to 278,930.61, 384,922.32 and 151,606.20

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Solution

The fourth proportional to 278,930.61, 384,922.32 and 151,606.20 is: 209,215.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,930.61 : 384,922.32 = 151,606.20 : x
  2. Step 2: Convert to fraction form
    278,930.61/384,922.32 = 151,606.20/x
  3. Step 3: Cross multiply
    278,930.61x = 384,922.32 × 151,606.20
  4. Step 4: Simplify right side
    278,930.61x = 58,356,610,230.38
  5. Step 5: Solve for x
    x = 58,356,610,230.38/278,930.61
  6. Step 6: Final answer
    x = 209,215.51

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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.