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Finding the Fourth Proportional to 253,893.44, 380,998.32 and 230,243.72

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Solution

The fourth proportional to 253,893.44, 380,998.32 and 230,243.72 is: 345,509.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,893.44 : 380,998.32 = 230,243.72 : x
  2. Step 2: Convert to fraction form
    253,893.44/380,998.32 = 230,243.72/x
  3. Step 3: Cross multiply
    253,893.44x = 380,998.32 × 230,243.72
  4. Step 4: Simplify right side
    253,893.44x = 87,722,470,510.55
  5. Step 5: Solve for x
    x = 87,722,470,510.55/253,893.44
  6. Step 6: Final answer
    x = 345,509.01

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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.