Home / 278,860.32-418,105.56-101,346.24

Finding the Fourth Proportional to 278,860.32, 418,105.56 and 101,346.24

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Solution

The fourth proportional to 278,860.32, 418,105.56 and 101,346.24 is: 151,952.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,860.32 : 418,105.56 = 101,346.24 : x
  2. Step 2: Convert to fraction form
    278,860.32/418,105.56 = 101,346.24/x
  3. Step 3: Cross multiply
    278,860.32x = 418,105.56 × 101,346.24
  4. Step 4: Simplify right side
    278,860.32x = 42,373,426,429.09
  5. Step 5: Solve for x
    x = 42,373,426,429.09/278,860.32
  6. Step 6: Final answer
    x = 151,952.15

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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.