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Finding the Fourth Proportional to 321,975.80, 482,502.90 and 223,364.60

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Solution

The fourth proportional to 321,975.80, 482,502.90 and 223,364.60 is: 334,727.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,975.80 : 482,502.90 = 223,364.60 : x
  2. Step 2: Convert to fraction form
    321,975.80/482,502.90 = 223,364.60/x
  3. Step 3: Cross multiply
    321,975.80x = 482,502.90 × 223,364.60
  4. Step 4: Simplify right side
    321,975.80x = 107,774,067,257.34
  5. Step 5: Solve for x
    x = 107,774,067,257.34/321,975.80
  6. Step 6: Final answer
    x = 334,727.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.