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Finding the Fourth Proportional to 225,172.80, 310,736.16 and 124,571.52

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Solution

The fourth proportional to 225,172.80, 310,736.16 and 124,571.52 is: 171,907.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,172.80 : 310,736.16 = 124,571.52 : x
  2. Step 2: Convert to fraction form
    225,172.80/310,736.16 = 124,571.52/x
  3. Step 3: Cross multiply
    225,172.80x = 310,736.16 × 124,571.52
  4. Step 4: Simplify right side
    225,172.80x = 38,708,875,770.16
  5. Step 5: Solve for x
    x = 38,708,875,770.16/225,172.80
  6. Step 6: Final answer
    x = 171,907.42

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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.