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Finding the Fourth Proportional to 254,457.40, 381,861 and 88,245.40

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Solution

The fourth proportional to 254,457.40, 381,861 and 88,245.40 is: 132,428.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,457.40 : 381,861 = 88,245.40 : x
  2. Step 2: Convert to fraction form
    254,457.40/381,861 = 88,245.40/x
  3. Step 3: Cross multiply
    254,457.40x = 381,861 × 88,245.40
  4. Step 4: Simplify right side
    254,457.40x = 33,697,476,689.40
  5. Step 5: Solve for x
    x = 33,697,476,689.40/254,457.40
  6. Step 6: Final answer
    x = 132,428.76

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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.