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Finding the Fourth Proportional to 203,858.70, 306,116.10 and 153,995.10

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Solution

The fourth proportional to 203,858.70, 306,116.10 and 153,995.10 is: 231,240.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,858.70 : 306,116.10 = 153,995.10 : x
  2. Step 2: Convert to fraction form
    203,858.70/306,116.10 = 153,995.10/x
  3. Step 3: Cross multiply
    203,858.70x = 306,116.10 × 153,995.10
  4. Step 4: Simplify right side
    203,858.70x = 47,140,379,431.11
  5. Step 5: Solve for x
    x = 47,140,379,431.11/203,858.70
  6. Step 6: Final answer
    x = 231,240.46

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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.