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Finding the Fourth Proportional to 253,709.46, 378,701.96 and 223,813.98

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Solution

The fourth proportional to 253,709.46, 378,701.96 and 223,813.98 is: 334,078.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,709.46 : 378,701.96 = 223,813.98 : x
  2. Step 2: Convert to fraction form
    253,709.46/378,701.96 = 223,813.98/x
  3. Step 3: Cross multiply
    253,709.46x = 378,701.96 × 223,813.98
  4. Step 4: Simplify right side
    253,709.46x = 84,758,791,782.33
  5. Step 5: Solve for x
    x = 84,758,791,782.33/253,709.46
  6. Step 6: Final answer
    x = 334,078.17

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.