Home / 320,809.54-442,721.10-177,582.94

Finding the Fourth Proportional to 320,809.54, 442,721.10 and 177,582.94

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Solution

The fourth proportional to 320,809.54, 442,721.10 and 177,582.94 is: 245,066.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,809.54 : 442,721.10 = 177,582.94 : x
  2. Step 2: Convert to fraction form
    320,809.54/442,721.10 = 177,582.94/x
  3. Step 3: Cross multiply
    320,809.54x = 442,721.10 × 177,582.94
  4. Step 4: Simplify right side
    320,809.54x = 78,619,714,538.03
  5. Step 5: Solve for x
    x = 78,619,714,538.03/320,809.54
  6. Step 6: Final answer
    x = 245,066.64

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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.