Home / 278,748.27-384,653.16-154,568.16

Finding the Fourth Proportional to 278,748.27, 384,653.16 and 154,568.16

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Solution

The fourth proportional to 278,748.27, 384,653.16 and 154,568.16 is: 213,293.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,748.27 : 384,653.16 = 154,568.16 : x
  2. Step 2: Convert to fraction form
    278,748.27/384,653.16 = 154,568.16/x
  3. Step 3: Cross multiply
    278,748.27x = 384,653.16 × 154,568.16
  4. Step 4: Simplify right side
    278,748.27x = 59,455,131,179.39
  5. Step 5: Solve for x
    x = 59,455,131,179.39/278,748.27
  6. Step 6: Final answer
    x = 213,293.27

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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.