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Finding the Fourth Proportional to 253,697.92, 380,546.35 and 103,938.39

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Solution

The fourth proportional to 253,697.92, 380,546.35 and 103,938.39 is: 155,907.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,697.92 : 380,546.35 = 103,938.39 : x
  2. Step 2: Convert to fraction form
    253,697.92/380,546.35 = 103,938.39/x
  3. Step 3: Cross multiply
    253,697.92x = 380,546.35 × 103,938.39
  4. Step 4: Simplify right side
    253,697.92x = 39,553,375,264.18
  5. Step 5: Solve for x
    x = 39,553,375,264.18/253,697.92
  6. Step 6: Final answer
    x = 155,907.37

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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.