Home / 320,998.17-442,977.08-177,758.04

Finding the Fourth Proportional to 320,998.17, 442,977.08 and 177,758.04

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Solution

The fourth proportional to 320,998.17, 442,977.08 and 177,758.04 is: 245,305.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,998.17 : 442,977.08 = 177,758.04 : x
  2. Step 2: Convert to fraction form
    320,998.17/442,977.08 = 177,758.04/x
  3. Step 3: Cross multiply
    320,998.17x = 442,977.08 × 177,758.04
  4. Step 4: Simplify right side
    320,998.17x = 78,742,736,616.93
  5. Step 5: Solve for x
    x = 78,742,736,616.93/320,998.17
  6. Step 6: Final answer
    x = 245,305.87

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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.