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Finding the Fourth Proportional to 272,298.60, 381,611.70 and 272,298.60

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Solution

The fourth proportional to 272,298.60, 381,611.70 and 272,298.60 is: 381,611.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,298.60 : 381,611.70 = 272,298.60 : x
  2. Step 2: Convert to fraction form
    272,298.60/381,611.70 = 272,298.60/x
  3. Step 3: Cross multiply
    272,298.60x = 381,611.70 × 272,298.60
  4. Step 4: Simplify right side
    272,298.60x = 103,912,331,653.62
  5. Step 5: Solve for x
    x = 103,912,331,653.62/272,298.60
  6. Step 6: Final answer
    x = 381,611.70

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.