Home / 230,638.80-345,956.14-72,867.25

Finding the Fourth Proportional to 230,638.80, 345,956.14 and 72,867.25

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Solution

The fourth proportional to 230,638.80, 345,956.14 and 72,867.25 is: 109,300.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,638.80 : 345,956.14 = 72,867.25 : x
  2. Step 2: Convert to fraction form
    230,638.80/345,956.14 = 72,867.25/x
  3. Step 3: Cross multiply
    230,638.80x = 345,956.14 × 72,867.25
  4. Step 4: Simplify right side
    230,638.80x = 25,208,872,542.42
  5. Step 5: Solve for x
    x = 25,208,872,542.42/230,638.80
  6. Step 6: Final answer
    x = 109,300.22

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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.