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Finding the Fourth Proportional to 223,684.87, 308,675.83 and 121,710.73

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Solution

The fourth proportional to 223,684.87, 308,675.83 and 121,710.73 is: 167,955.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,684.87 : 308,675.83 = 121,710.73 : x
  2. Step 2: Convert to fraction form
    223,684.87/308,675.83 = 121,710.73/x
  3. Step 3: Cross multiply
    223,684.87x = 308,675.83 × 121,710.73
  4. Step 4: Simplify right side
    223,684.87x = 37,569,160,602.66
  5. Step 5: Solve for x
    x = 37,569,160,602.66/223,684.87
  6. Step 6: Final answer
    x = 167,955.75

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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.