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Finding the Fourth Proportional to 254,310.40, 381,684.30 and 112,374.10

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Solution

The fourth proportional to 254,310.40, 381,684.30 and 112,374.10 is: 168,657.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,310.40 : 381,684.30 = 112,374.10 : x
  2. Step 2: Convert to fraction form
    254,310.40/381,684.30 = 112,374.10/x
  3. Step 3: Cross multiply
    254,310.40x = 381,684.30 × 112,374.10
  4. Step 4: Simplify right side
    254,310.40x = 42,891,429,696.63
  5. Step 5: Solve for x
    x = 42,891,429,696.63/254,310.40
  6. Step 6: Final answer
    x = 168,657.79

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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.