Home / 223,208.43-308,029.86-121,235.91

Finding the Fourth Proportional to 223,208.43, 308,029.86 and 121,235.91

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Solution

The fourth proportional to 223,208.43, 308,029.86 and 121,235.91 is: 167,306.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,208.43 : 308,029.86 = 121,235.91 : x
  2. Step 2: Convert to fraction form
    223,208.43/308,029.86 = 121,235.91/x
  3. Step 3: Cross multiply
    223,208.43x = 308,029.86 × 121,235.91
  4. Step 4: Simplify right side
    223,208.43x = 37,344,280,384.27
  5. Step 5: Solve for x
    x = 37,344,280,384.27/223,208.43
  6. Step 6: Final answer
    x = 167,306.77

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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.