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Finding the Fourth Proportional to 300,107.60, 450,102 and 86,900.48

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Solution

The fourth proportional to 300,107.60, 450,102 and 86,900.48 is: 130,333.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,107.60 : 450,102 = 86,900.48 : x
  2. Step 2: Convert to fraction form
    300,107.60/450,102 = 86,900.48/x
  3. Step 3: Cross multiply
    300,107.60x = 450,102 × 86,900.48
  4. Step 4: Simplify right side
    300,107.60x = 39,114,079,848.96
  5. Step 5: Solve for x
    x = 39,114,079,848.96/300,107.60
  6. Step 6: Final answer
    x = 130,333.52

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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.