Home / 280,654.73-421,297.58-112,293.83

Finding the Fourth Proportional to 280,654.73, 421,297.58 and 112,293.83

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Solution

The fourth proportional to 280,654.73, 421,297.58 and 112,293.83 is: 168,566.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,654.73 : 421,297.58 = 112,293.83 : x
  2. Step 2: Convert to fraction form
    280,654.73/421,297.58 = 112,293.83/x
  3. Step 3: Cross multiply
    280,654.73x = 421,297.58 × 112,293.83
  4. Step 4: Simplify right side
    280,654.73x = 47,309,116,159.97
  5. Step 5: Solve for x
    x = 47,309,116,159.97/280,654.73
  6. Step 6: Final answer
    x = 168,566.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.