Home / 215,814.91-297,824.76-120,319.69

Finding the Fourth Proportional to 215,814.91, 297,824.76 and 120,319.69

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Solution

The fourth proportional to 215,814.91, 297,824.76 and 120,319.69 is: 166,041.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,814.91 : 297,824.76 = 120,319.69 : x
  2. Step 2: Convert to fraction form
    215,814.91/297,824.76 = 120,319.69/x
  3. Step 3: Cross multiply
    215,814.91x = 297,824.76 × 120,319.69
  4. Step 4: Simplify right side
    215,814.91x = 35,834,180,706.80
  5. Step 5: Solve for x
    x = 35,834,180,706.80/215,814.91
  6. Step 6: Final answer
    x = 166,041.27

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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.