Home / 215,814.78-297,824.58-120,319.56

Finding the Fourth Proportional to 215,814.78, 297,824.58 and 120,319.56

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Solution

The fourth proportional to 215,814.78, 297,824.58 and 120,319.56 is: 166,041.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,814.78 : 297,824.58 = 120,319.56 : x
  2. Step 2: Convert to fraction form
    215,814.78/297,824.58 = 120,319.56/x
  3. Step 3: Cross multiply
    215,814.78x = 297,824.58 × 120,319.56
  4. Step 4: Simplify right side
    215,814.78x = 35,834,122,422.78
  5. Step 5: Solve for x
    x = 35,834,122,422.78/215,814.78
  6. Step 6: Final answer
    x = 166,041.10

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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.