Home / 432,834.36-649,321.31-133,314.80

Finding the Fourth Proportional to 432,834.36, 649,321.31 and 133,314.80

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Solution

The fourth proportional to 432,834.36, 649,321.31 and 133,314.80 is: 199,993.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,834.36 : 649,321.31 = 133,314.80 : x
  2. Step 2: Convert to fraction form
    432,834.36/649,321.31 = 133,314.80/x
  3. Step 3: Cross multiply
    432,834.36x = 649,321.31 × 133,314.80
  4. Step 4: Simplify right side
    432,834.36x = 86,564,142,534.98
  5. Step 5: Solve for x
    x = 86,564,142,534.98/432,834.36
  6. Step 6: Final answer
    x = 199,993.69

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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.