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Finding the Fourth Proportional to 436,334.82, 654,510.33 and 136,808.70

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Solution

The fourth proportional to 436,334.82, 654,510.33 and 136,808.70 is: 205,215.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,334.82 : 654,510.33 = 136,808.70 : x
  2. Step 2: Convert to fraction form
    436,334.82/654,510.33 = 136,808.70/x
  3. Step 3: Cross multiply
    436,334.82x = 654,510.33 × 136,808.70
  4. Step 4: Simplify right side
    436,334.82x = 89,542,707,383.87
  5. Step 5: Solve for x
    x = 89,542,707,383.87/436,334.82
  6. Step 6: Final answer
    x = 205,215.59

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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.