Home / 409,434.23-614,027.41-143,145.11

Finding the Fourth Proportional to 409,434.23, 614,027.41 and 143,145.11

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Solution

The fourth proportional to 409,434.23, 614,027.41 and 143,145.11 is: 214,674.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,434.23 : 614,027.41 = 143,145.11 : x
  2. Step 2: Convert to fraction form
    409,434.23/614,027.41 = 143,145.11/x
  3. Step 3: Cross multiply
    409,434.23x = 614,027.41 × 143,145.11
  4. Step 4: Simplify right side
    409,434.23x = 87,895,019,273.36
  5. Step 5: Solve for x
    x = 87,895,019,273.36/409,434.23
  6. Step 6: Final answer
    x = 214,674.33

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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.