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Finding the Fourth Proportional to 276,910.47, 382,158.94 and 156,059.94

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Solution

The fourth proportional to 276,910.47, 382,158.94 and 156,059.94 is: 215,375.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,910.47 : 382,158.94 = 156,059.94 : x
  2. Step 2: Convert to fraction form
    276,910.47/382,158.94 = 156,059.94/x
  3. Step 3: Cross multiply
    276,910.47x = 382,158.94 × 156,059.94
  4. Step 4: Simplify right side
    276,910.47x = 59,639,701,068.68
  5. Step 5: Solve for x
    x = 59,639,701,068.68/276,910.47
  6. Step 6: Final answer
    x = 215,375.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.