Home / 278,669.22-384,587.24-157,832

Finding the Fourth Proportional to 278,669.22, 384,587.24 and 157,832

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Solution

The fourth proportional to 278,669.22, 384,587.24 and 157,832 is: 217,821.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,669.22 : 384,587.24 = 157,832 : x
  2. Step 2: Convert to fraction form
    278,669.22/384,587.24 = 157,832/x
  3. Step 3: Cross multiply
    278,669.22x = 384,587.24 × 157,832
  4. Step 4: Simplify right side
    278,669.22x = 60,700,173,263.68
  5. Step 5: Solve for x
    x = 60,700,173,263.68/278,669.22
  6. Step 6: Final answer
    x = 217,821.59

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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.