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Finding the Fourth Proportional to 422,172.52, 633,126.34 and 122,673.81

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Solution

The fourth proportional to 422,172.52, 633,126.34 and 122,673.81 is: 183,972.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,172.52 : 633,126.34 = 122,673.81 : x
  2. Step 2: Convert to fraction form
    422,172.52/633,126.34 = 122,673.81/x
  3. Step 3: Cross multiply
    422,172.52x = 633,126.34 × 122,673.81
  4. Step 4: Simplify right side
    422,172.52x = 77,668,020,339.16
  5. Step 5: Solve for x
    x = 77,668,020,339.16/422,172.52
  6. Step 6: Final answer
    x = 183,972.23

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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.