Home / 210,832.14-290,950.64-115,336.78

Finding the Fourth Proportional to 210,832.14, 290,950.64 and 115,336.78

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Solution

The fourth proportional to 210,832.14, 290,950.64 and 115,336.78 is: 159,166.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,832.14 : 290,950.64 = 115,336.78 : x
  2. Step 2: Convert to fraction form
    210,832.14/290,950.64 = 115,336.78/x
  3. Step 3: Cross multiply
    210,832.14x = 290,950.64 × 115,336.78
  4. Step 4: Simplify right side
    210,832.14x = 33,557,309,956.54
  5. Step 5: Solve for x
    x = 33,557,309,956.54/210,832.14
  6. Step 6: Final answer
    x = 159,166.01

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1.5x scale

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.