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Finding the Fourth Proportional to 300,604.95, 450,801.07 and 87,328.49

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Solution

The fourth proportional to 300,604.95, 450,801.07 and 87,328.49 is: 130,961.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,604.95 : 450,801.07 = 87,328.49 : x
  2. Step 2: Convert to fraction form
    300,604.95/450,801.07 = 87,328.49/x
  3. Step 3: Cross multiply
    300,604.95x = 450,801.07 × 87,328.49
  4. Step 4: Simplify right side
    300,604.95x = 39,367,776,733.48
  5. Step 5: Solve for x
    x = 39,367,776,733.48/300,604.95
  6. Step 6: Final answer
    x = 130,961.84

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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.