Home / 291,921.89-437,619.31-104,889.65

Finding the Fourth Proportional to 291,921.89, 437,619.31 and 104,889.65

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Solution

The fourth proportional to 291,921.89, 437,619.31 and 104,889.65 is: 157,239.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,921.89 : 437,619.31 = 104,889.65 : x
  2. Step 2: Convert to fraction form
    291,921.89/437,619.31 = 104,889.65/x
  3. Step 3: Cross multiply
    291,921.89x = 437,619.31 × 104,889.65
  4. Step 4: Simplify right side
    291,921.89x = 45,901,733,808.82
  5. Step 5: Solve for x
    x = 45,901,733,808.82/291,921.89
  6. Step 6: Final answer
    x = 157,239.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.