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Finding the Fourth Proportional to 300,610.32, 450,809.13 and 87,333.87

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Solution

The fourth proportional to 300,610.32, 450,809.13 and 87,333.87 is: 130,969.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,610.32 : 450,809.13 = 87,333.87 : x
  2. Step 2: Convert to fraction form
    300,610.32/450,809.13 = 87,333.87/x
  3. Step 3: Cross multiply
    300,610.32x = 450,809.13 × 87,333.87
  4. Step 4: Simplify right side
    300,610.32x = 39,370,905,954.23
  5. Step 5: Solve for x
    x = 39,370,905,954.23/300,610.32
  6. Step 6: Final answer
    x = 130,969.91

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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.