Home / 278,518.08-384,314.40-159,263.04

Finding the Fourth Proportional to 278,518.08, 384,314.40 and 159,263.04

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Solution

The fourth proportional to 278,518.08, 384,314.40 and 159,263.04 is: 219,759.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,518.08 : 384,314.40 = 159,263.04 : x
  2. Step 2: Convert to fraction form
    278,518.08/384,314.40 = 159,263.04/x
  3. Step 3: Cross multiply
    278,518.08x = 384,314.40 × 159,263.04
  4. Step 4: Simplify right side
    278,518.08x = 61,207,079,659.78
  5. Step 5: Solve for x
    x = 61,207,079,659.78/278,518.08
  6. Step 6: Final answer
    x = 219,759.81

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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.