Home / 223,410.92-308,309.25-121,436.31

Finding the Fourth Proportional to 223,410.92, 308,309.25 and 121,436.31

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Solution

The fourth proportional to 223,410.92, 308,309.25 and 121,436.31 is: 167,583.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,410.92 : 308,309.25 = 121,436.31 : x
  2. Step 2: Convert to fraction form
    223,410.92/308,309.25 = 121,436.31/x
  3. Step 3: Cross multiply
    223,410.92x = 308,309.25 × 121,436.31
  4. Step 4: Simplify right side
    223,410.92x = 37,439,937,658.87
  5. Step 5: Solve for x
    x = 37,439,937,658.87/223,410.92
  6. Step 6: Final answer
    x = 167,583.30

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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.