Home / 210,849.21-290,871.41-130,247.73

Finding the Fourth Proportional to 210,849.21, 290,871.41 and 130,247.73

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Solution

The fourth proportional to 210,849.21, 290,871.41 and 130,247.73 is: 179,679.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,849.21 : 290,871.41 = 130,247.73 : x
  2. Step 2: Convert to fraction form
    210,849.21/290,871.41 = 130,247.73/x
  3. Step 3: Cross multiply
    210,849.21x = 290,871.41 × 130,247.73
  4. Step 4: Simplify right side
    210,849.21x = 37,885,340,223.16
  5. Step 5: Solve for x
    x = 37,885,340,223.16/210,849.21
  6. Step 6: Final answer
    x = 179,679.78

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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.