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Finding the Fourth Proportional to 150,628.78, 207,860.70 and 82,644.22

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Solution

The fourth proportional to 150,628.78, 207,860.70 and 82,644.22 is: 114,045.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,628.78 : 207,860.70 = 82,644.22 : x
  2. Step 2: Convert to fraction form
    150,628.78/207,860.70 = 82,644.22/x
  3. Step 3: Cross multiply
    150,628.78x = 207,860.70 × 82,644.22
  4. Step 4: Simplify right side
    150,628.78x = 17,178,485,420.15
  5. Step 5: Solve for x
    x = 17,178,485,420.15/150,628.78
  6. Step 6: Final answer
    x = 114,045.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.