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Finding the Fourth Proportional to 223,040.27, 307,790.67 and 121,065.92

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Solution

The fourth proportional to 223,040.27, 307,790.67 and 121,065.92 is: 167,068.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,040.27 : 307,790.67 = 121,065.92 : x
  2. Step 2: Convert to fraction form
    223,040.27/307,790.67 = 121,065.92/x
  3. Step 3: Cross multiply
    223,040.27x = 307,790.67 × 121,065.92
  4. Step 4: Simplify right side
    223,040.27x = 37,262,961,750.55
  5. Step 5: Solve for x
    x = 37,262,961,750.55/223,040.27
  6. Step 6: Final answer
    x = 167,068.32

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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.