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Finding the Fourth Proportional to 203,213.70, 304,820.55 and 84,884.10

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Solution

The fourth proportional to 203,213.70, 304,820.55 and 84,884.10 is: 127,326.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,213.70 : 304,820.55 = 84,884.10 : x
  2. Step 2: Convert to fraction form
    203,213.70/304,820.55 = 84,884.10/x
  3. Step 3: Cross multiply
    203,213.70x = 304,820.55 × 84,884.10
  4. Step 4: Simplify right side
    203,213.70x = 25,874,418,048.26
  5. Step 5: Solve for x
    x = 25,874,418,048.26/203,213.70
  6. Step 6: Final answer
    x = 127,326.15

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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.