Home / 320,983.76-442,952.08-177,740.72

Finding the Fourth Proportional to 320,983.76, 442,952.08 and 177,740.72

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Solution

The fourth proportional to 320,983.76, 442,952.08 and 177,740.72 is: 245,279.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,983.76 : 442,952.08 = 177,740.72 : x
  2. Step 2: Convert to fraction form
    320,983.76/442,952.08 = 177,740.72/x
  3. Step 3: Cross multiply
    320,983.76x = 442,952.08 × 177,740.72
  4. Step 4: Simplify right side
    320,983.76x = 78,730,621,624.70
  5. Step 5: Solve for x
    x = 78,730,621,624.70/320,983.76
  6. Step 6: Final answer
    x = 245,279.14

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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.