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Finding the Fourth Proportional to 203,460.88, 305,133 and 61,319.92

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Solution

The fourth proportional to 203,460.88, 305,133 and 61,319.92 is: 91,962.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,460.88 : 305,133 = 61,319.92 : x
  2. Step 2: Convert to fraction form
    203,460.88/305,133 = 61,319.92/x
  3. Step 3: Cross multiply
    203,460.88x = 305,133 × 61,319.92
  4. Step 4: Simplify right side
    203,460.88x = 18,710,731,149.36
  5. Step 5: Solve for x
    x = 18,710,731,149.36/203,460.88
  6. Step 6: Final answer
    x = 91,962.30

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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.