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Finding the Fourth Proportional to 203,254.52, 304,824.20 and 128,262.29

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Solution

The fourth proportional to 203,254.52, 304,824.20 and 128,262.29 is: 192,357.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,254.52 : 304,824.20 = 128,262.29 : x
  2. Step 2: Convert to fraction form
    203,254.52/304,824.20 = 128,262.29/x
  3. Step 3: Cross multiply
    203,254.52x = 304,824.20 × 128,262.29
  4. Step 4: Simplify right side
    203,254.52x = 39,097,447,773.99
  5. Step 5: Solve for x
    x = 39,097,447,773.99/203,254.52
  6. Step 6: Final answer
    x = 192,357.09

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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.