Home / 278,832.56-418,253.40-101,228.72

Finding the Fourth Proportional to 278,832.56, 418,253.40 and 101,228.72

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Solution

The fourth proportional to 278,832.56, 418,253.40 and 101,228.72 is: 151,844.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,832.56 : 418,253.40 = 101,228.72 : x
  2. Step 2: Convert to fraction form
    278,832.56/418,253.40 = 101,228.72/x
  3. Step 3: Cross multiply
    278,832.56x = 418,253.40 × 101,228.72
  4. Step 4: Simplify right side
    278,832.56x = 42,339,256,317.65
  5. Step 5: Solve for x
    x = 42,339,256,317.65/278,832.56
  6. Step 6: Final answer
    x = 151,844.74

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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.