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Finding the Fourth Proportional to 203,299.32, 305,228.28 and 103,526.56

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Solution

The fourth proportional to 203,299.32, 305,228.28 and 103,526.56 is: 155,432.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,299.32 : 305,228.28 = 103,526.56 : x
  2. Step 2: Convert to fraction form
    203,299.32/305,228.28 = 103,526.56/x
  3. Step 3: Cross multiply
    203,299.32x = 305,228.28 × 103,526.56
  4. Step 4: Simplify right side
    203,299.32x = 31,599,233,843.12
  5. Step 5: Solve for x
    x = 31,599,233,843.12/203,299.32
  6. Step 6: Final answer
    x = 155,432.07

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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.