Home / 278,746.96-384,788.56-188,225.52

Finding the Fourth Proportional to 278,746.96, 384,788.56 and 188,225.52

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Solution

The fourth proportional to 278,746.96, 384,788.56 and 188,225.52 is: 259,830.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,746.96 : 384,788.56 = 188,225.52 : x
  2. Step 2: Convert to fraction form
    278,746.96/384,788.56 = 188,225.52/x
  3. Step 3: Cross multiply
    278,746.96x = 384,788.56 × 188,225.52
  4. Step 4: Simplify right side
    278,746.96x = 72,427,026,796.05
  5. Step 5: Solve for x
    x = 72,427,026,796.05/278,746.96
  6. Step 6: Final answer
    x = 259,830.73

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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.