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Finding the Fourth Proportional to 150,400.90, 207,617.28 and 101,353.28

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Solution

The fourth proportional to 150,400.90, 207,617.28 and 101,353.28 is: 139,910.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,400.90 : 207,617.28 = 101,353.28 : x
  2. Step 2: Convert to fraction form
    150,400.90/207,617.28 = 101,353.28/x
  3. Step 3: Cross multiply
    150,400.90x = 207,617.28 × 101,353.28
  4. Step 4: Simplify right side
    150,400.90x = 21,042,690,894.52
  5. Step 5: Solve for x
    x = 21,042,690,894.52/150,400.90
  6. Step 6: Final answer
    x = 139,910.67

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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.