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Finding the Fourth Proportional to 219,627.78, 303,086.28 and 119,025.78

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Solution

The fourth proportional to 219,627.78, 303,086.28 and 119,025.78 is: 164,255.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,627.78 : 303,086.28 = 119,025.78 : x
  2. Step 2: Convert to fraction form
    219,627.78/303,086.28 = 119,025.78/x
  3. Step 3: Cross multiply
    219,627.78x = 303,086.28 × 119,025.78
  4. Step 4: Simplify right side
    219,627.78x = 36,075,080,884.30
  5. Step 5: Solve for x
    x = 36,075,080,884.30/219,627.78
  6. Step 6: Final answer
    x = 164,255.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.