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Finding the Fourth Proportional to 203,494.40, 305,533.20 and 153,922.40

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Solution

The fourth proportional to 203,494.40, 305,533.20 and 153,922.40 is: 231,104.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,494.40 : 305,533.20 = 153,922.40 : x
  2. Step 2: Convert to fraction form
    203,494.40/305,533.20 = 153,922.40/x
  3. Step 3: Cross multiply
    203,494.40x = 305,533.20 × 153,922.40
  4. Step 4: Simplify right side
    203,494.40x = 47,028,403,423.68
  5. Step 5: Solve for x
    x = 47,028,403,423.68/203,494.40
  6. Step 6: Final answer
    x = 231,104.17

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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.