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Finding the Fourth Proportional to 312,299.31, 468,452.80 and 109,901.44

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Solution

The fourth proportional to 312,299.31, 468,452.80 and 109,901.44 is: 164,853.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,299.31 : 468,452.80 = 109,901.44 : x
  2. Step 2: Convert to fraction form
    312,299.31/468,452.80 = 109,901.44/x
  3. Step 3: Cross multiply
    312,299.31x = 468,452.80 × 109,901.44
  4. Step 4: Simplify right side
    312,299.31x = 51,483,638,014.97
  5. Step 5: Solve for x
    x = 51,483,638,014.97/312,299.31
  6. Step 6: Final answer
    x = 164,853.51

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1.5x scale

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.