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Finding the Fourth Proportional to 230,447.91, 345,671.88 and 72,688.67

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Solution

The fourth proportional to 230,447.91, 345,671.88 and 72,688.67 is: 109,033.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,447.91 : 345,671.88 = 72,688.67 : x
  2. Step 2: Convert to fraction form
    230,447.91/345,671.88 = 72,688.67/x
  3. Step 3: Cross multiply
    230,447.91x = 345,671.88 × 72,688.67
  4. Step 4: Simplify right side
    230,447.91x = 25,126,427,485.24
  5. Step 5: Solve for x
    x = 25,126,427,485.24/230,447.91
  6. Step 6: Final answer
    x = 109,033.00

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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.