Home / 282,590.82-389,974.14-161,731.50

Finding the Fourth Proportional to 282,590.82, 389,974.14 and 161,731.50

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Solution

The fourth proportional to 282,590.82, 389,974.14 and 161,731.50 is: 223,188.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,590.82 : 389,974.14 = 161,731.50 : x
  2. Step 2: Convert to fraction form
    282,590.82/389,974.14 = 161,731.50/x
  3. Step 3: Cross multiply
    282,590.82x = 389,974.14 × 161,731.50
  4. Step 4: Simplify right side
    282,590.82x = 63,071,102,623.41
  5. Step 5: Solve for x
    x = 63,071,102,623.41/282,590.82
  6. Step 6: Final answer
    x = 223,188.79

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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.