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Finding the Fourth Proportional to 230,444.92, 345,667.38 and 72,685.67

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Solution

The fourth proportional to 230,444.92, 345,667.38 and 72,685.67 is: 109,028.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,444.92 : 345,667.38 = 72,685.67 : x
  2. Step 2: Convert to fraction form
    230,444.92/345,667.38 = 72,685.67/x
  3. Step 3: Cross multiply
    230,444.92x = 345,667.38 × 72,685.67
  4. Step 4: Simplify right side
    230,444.92x = 25,125,065,464.77
  5. Step 5: Solve for x
    x = 25,125,065,464.77/230,444.92
  6. Step 6: Final answer
    x = 109,028.51

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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.