Home / 223,311.46-308,171.69-121,336.92

Finding the Fourth Proportional to 223,311.46, 308,171.69 and 121,336.92

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Solution

The fourth proportional to 223,311.46, 308,171.69 and 121,336.92 is: 167,445.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,311.46 : 308,171.69 = 121,336.92 : x
  2. Step 2: Convert to fraction form
    223,311.46/308,171.69 = 121,336.92/x
  3. Step 3: Cross multiply
    223,311.46x = 308,171.69 × 121,336.92
  4. Step 4: Simplify right side
    223,311.46x = 37,392,602,506.76
  5. Step 5: Solve for x
    x = 37,392,602,506.76/223,311.46
  6. Step 6: Final answer
    x = 167,445.97

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1.5x scale

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.