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Finding the Fourth Proportional to 230,019.63, 345,043.23 and 72,248.09

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Solution

The fourth proportional to 230,019.63, 345,043.23 and 72,248.09 is: 108,376.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,019.63 : 345,043.23 = 72,248.09 : x
  2. Step 2: Convert to fraction form
    230,019.63/345,043.23 = 72,248.09/x
  3. Step 3: Cross multiply
    230,019.63x = 345,043.23 × 72,248.09
  4. Step 4: Simplify right side
    230,019.63x = 24,928,713,527.60
  5. Step 5: Solve for x
    x = 24,928,713,527.60/230,019.63
  6. Step 6: Final answer
    x = 108,376.46

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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.