Home / 278,723.07-384,629.04-157,875.53

Finding the Fourth Proportional to 278,723.07, 384,629.04 and 157,875.53

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Solution

The fourth proportional to 278,723.07, 384,629.04 and 157,875.53 is: 217,863.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,723.07 : 384,629.04 = 157,875.53 : x
  2. Step 2: Convert to fraction form
    278,723.07/384,629.04 = 157,875.53/x
  3. Step 3: Cross multiply
    278,723.07x = 384,629.04 × 157,875.53
  4. Step 4: Simplify right side
    278,723.07x = 60,723,511,620.25
  5. Step 5: Solve for x
    x = 60,723,511,620.25/278,723.07
  6. Step 6: Final answer
    x = 217,863.24

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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.