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Finding the Fourth Proportional to 306,125.28, 459,222.30 and 81,494.46

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Solution

The fourth proportional to 306,125.28, 459,222.30 and 81,494.46 is: 122,250.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,125.28 : 459,222.30 = 81,494.46 : x
  2. Step 2: Convert to fraction form
    306,125.28/459,222.30 = 81,494.46/x
  3. Step 3: Cross multiply
    306,125.28x = 459,222.30 × 81,494.46
  4. Step 4: Simplify right side
    306,125.28x = 37,424,073,358.46
  5. Step 5: Solve for x
    x = 37,424,073,358.46/306,125.28
  6. Step 6: Final answer
    x = 122,250.84

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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.