Home / 291,279.85-401,976.07-160,451.69

Finding the Fourth Proportional to 291,279.85, 401,976.07 and 160,451.69

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Solution

The fourth proportional to 291,279.85, 401,976.07 and 160,451.69 is: 221,428.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,279.85 : 401,976.07 = 160,451.69 : x
  2. Step 2: Convert to fraction form
    291,279.85/401,976.07 = 160,451.69/x
  3. Step 3: Cross multiply
    291,279.85x = 401,976.07 × 160,451.69
  4. Step 4: Simplify right side
    291,279.85x = 64,497,737,360.05
  5. Step 5: Solve for x
    x = 64,497,737,360.05/291,279.85
  6. Step 6: Final answer
    x = 221,428.77

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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.