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Finding the Fourth Proportional to 296,880.60, 445,277.70 and 86,496.60

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Solution

The fourth proportional to 296,880.60, 445,277.70 and 86,496.60 is: 129,732.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,880.60 : 445,277.70 = 86,496.60 : x
  2. Step 2: Convert to fraction form
    296,880.60/445,277.70 = 86,496.60/x
  3. Step 3: Cross multiply
    296,880.60x = 445,277.70 × 86,496.60
  4. Step 4: Simplify right side
    296,880.60x = 38,515,007,105.82
  5. Step 5: Solve for x
    x = 38,515,007,105.82/296,880.60
  6. Step 6: Final answer
    x = 129,732.31

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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.