Home / 282,095.22-389,291.40-161,239.11

Finding the Fourth Proportional to 282,095.22, 389,291.40 and 161,239.11

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Solution

The fourth proportional to 282,095.22, 389,291.40 and 161,239.11 is: 222,509.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,095.22 : 389,291.40 = 161,239.11 : x
  2. Step 2: Convert to fraction form
    282,095.22/389,291.40 = 161,239.11/x
  3. Step 3: Cross multiply
    282,095.22x = 389,291.40 × 161,239.11
  4. Step 4: Simplify right side
    282,095.22x = 62,768,998,866.65
  5. Step 5: Solve for x
    x = 62,768,998,866.65/282,095.22
  6. Step 6: Final answer
    x = 222,509.97

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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.