Home / 320,987.52-442,957.28-177,744.48

Finding the Fourth Proportional to 320,987.52, 442,957.28 and 177,744.48

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Solution

The fourth proportional to 320,987.52, 442,957.28 and 177,744.48 is: 245,284.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,987.52 : 442,957.28 = 177,744.48 : x
  2. Step 2: Convert to fraction form
    320,987.52/442,957.28 = 177,744.48/x
  3. Step 3: Cross multiply
    320,987.52x = 442,957.28 × 177,744.48
  4. Step 4: Simplify right side
    320,987.52x = 78,733,211,395.81
  5. Step 5: Solve for x
    x = 78,733,211,395.81/320,987.52
  6. Step 6: Final answer
    x = 245,284.34

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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.