Home / 320,719.91-442,587.14-177,479.91

Finding the Fourth Proportional to 320,719.91, 442,587.14 and 177,479.91

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Solution

The fourth proportional to 320,719.91, 442,587.14 and 177,479.91 is: 244,918.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,719.91 : 442,587.14 = 177,479.91 : x
  2. Step 2: Convert to fraction form
    320,719.91/442,587.14 = 177,479.91/x
  3. Step 3: Cross multiply
    320,719.91x = 442,587.14 × 177,479.91
  4. Step 4: Simplify right side
    320,719.91x = 78,550,325,552.51
  5. Step 5: Solve for x
    x = 78,550,325,552.51/320,719.91
  6. Step 6: Final answer
    x = 244,918.77

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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.