Home / 223,285.23-308,132.28-121,309.83

Finding the Fourth Proportional to 223,285.23, 308,132.28 and 121,309.83

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Solution

The fourth proportional to 223,285.23, 308,132.28 and 121,309.83 is: 167,406.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,285.23 : 308,132.28 = 121,309.83 : x
  2. Step 2: Convert to fraction form
    223,285.23/308,132.28 = 121,309.83/x
  3. Step 3: Cross multiply
    223,285.23x = 308,132.28 × 121,309.83
  4. Step 4: Simplify right side
    223,285.23x = 37,379,474,504.31
  5. Step 5: Solve for x
    x = 37,379,474,504.31/223,285.23
  6. Step 6: Final answer
    x = 167,406.84

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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.