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Finding the Fourth Proportional to 222,735.50, 307,389.66 and 122,133.50

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Solution

The fourth proportional to 222,735.50, 307,389.66 and 122,133.50 is: 168,552.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,735.50 : 307,389.66 = 122,133.50 : x
  2. Step 2: Convert to fraction form
    222,735.50/307,389.66 = 122,133.50/x
  3. Step 3: Cross multiply
    222,735.50x = 307,389.66 × 122,133.50
  4. Step 4: Simplify right side
    222,735.50x = 37,542,575,039.61
  5. Step 5: Solve for x
    x = 37,542,575,039.61/222,735.50
  6. Step 6: Final answer
    x = 168,552.27

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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.