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Finding the Fourth Proportional to 223,015.94, 307,764.17 and 121,042.30

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Solution

The fourth proportional to 223,015.94, 307,764.17 and 121,042.30 is: 167,039.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,015.94 : 307,764.17 = 121,042.30 : x
  2. Step 2: Convert to fraction form
    223,015.94/307,764.17 = 121,042.30/x
  3. Step 3: Cross multiply
    223,015.94x = 307,764.17 × 121,042.30
  4. Step 4: Simplify right side
    223,015.94x = 37,252,482,527.59
  5. Step 5: Solve for x
    x = 37,252,482,527.59/223,015.94
  6. Step 6: Final answer
    x = 167,039.55

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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.