Home / 320,981.50-442,949.02-177,738.47

Finding the Fourth Proportional to 320,981.50, 442,949.02 and 177,738.47

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Solution

The fourth proportional to 320,981.50, 442,949.02 and 177,738.47 is: 245,276.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,981.50 : 442,949.02 = 177,738.47 : x
  2. Step 2: Convert to fraction form
    320,981.50/442,949.02 = 177,738.47/x
  3. Step 3: Cross multiply
    320,981.50x = 442,949.02 × 177,738.47
  4. Step 4: Simplify right side
    320,981.50x = 78,729,078,443.71
  5. Step 5: Solve for x
    x = 78,729,078,443.71/320,981.50
  6. Step 6: Final answer
    x = 245,276.06

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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.