Home / 205,341.07-307,262.25-121,141.57

Finding the Fourth Proportional to 205,341.07, 307,262.25 and 121,141.57

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Solution

The fourth proportional to 205,341.07, 307,262.25 and 121,141.57 is: 181,270.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,341.07 : 307,262.25 = 121,141.57 : x
  2. Step 2: Convert to fraction form
    205,341.07/307,262.25 = 121,141.57/x
  3. Step 3: Cross multiply
    205,341.07x = 307,262.25 × 121,141.57
  4. Step 4: Simplify right side
    205,341.07x = 37,222,229,376.14
  5. Step 5: Solve for x
    x = 37,222,229,376.14/205,341.07
  6. Step 6: Final answer
    x = 181,270.27

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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.