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Finding the Fourth Proportional to 230,373.75, 345,716.32 and 80,615.34

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Solution

The fourth proportional to 230,373.75, 345,716.32 and 80,615.34 is: 120,977.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,373.75 : 345,716.32 = 80,615.34 : x
  2. Step 2: Convert to fraction form
    230,373.75/345,716.32 = 80,615.34/x
  3. Step 3: Cross multiply
    230,373.75x = 345,716.32 × 80,615.34
  4. Step 4: Simplify right side
    230,373.75x = 27,870,038,017.60
  5. Step 5: Solve for x
    x = 27,870,038,017.60/230,373.75
  6. Step 6: Final answer
    x = 120,977.49

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1.5x scale

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.