Home / 190,628.13-285,491.34-165,531.78

Finding the Fourth Proportional to 190,628.13, 285,491.34 and 165,531.78

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Solution

The fourth proportional to 190,628.13, 285,491.34 and 165,531.78 is: 247,906.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,628.13 : 285,491.34 = 165,531.78 : x
  2. Step 2: Convert to fraction form
    190,628.13/285,491.34 = 165,531.78/x
  3. Step 3: Cross multiply
    190,628.13x = 285,491.34 × 165,531.78
  4. Step 4: Simplify right side
    190,628.13x = 47,257,889,684.79
  5. Step 5: Solve for x
    x = 47,257,889,684.79/190,628.13
  6. Step 6: Final answer
    x = 247,906.17

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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.