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Finding the Fourth Proportional to 340,143.98, 510,330.78 and 150,578.19

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Solution

The fourth proportional to 340,143.98, 510,330.78 and 150,578.19 is: 225,918.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,143.98 : 510,330.78 = 150,578.19 : x
  2. Step 2: Convert to fraction form
    340,143.98/510,330.78 = 150,578.19/x
  3. Step 3: Cross multiply
    340,143.98x = 510,330.78 × 150,578.19
  4. Step 4: Simplify right side
    340,143.98x = 76,844,685,153.69
  5. Step 5: Solve for x
    x = 76,844,685,153.69/340,143.98
  6. Step 6: Final answer
    x = 225,918.11

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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.