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Finding the Fourth Proportional to 219,953.30, 303,379.03 and 201,862.45

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Solution

The fourth proportional to 219,953.30, 303,379.03 and 201,862.45 is: 278,426.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,953.30 : 303,379.03 = 201,862.45 : x
  2. Step 2: Convert to fraction form
    219,953.30/303,379.03 = 201,862.45/x
  3. Step 3: Cross multiply
    219,953.30x = 303,379.03 × 201,862.45
  4. Step 4: Simplify right side
    219,953.30x = 61,240,835,191.49
  5. Step 5: Solve for x
    x = 61,240,835,191.49/219,953.30
  6. Step 6: Final answer
    x = 278,426.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.