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Finding the Fourth Proportional to 219,633.51, 303,101.29 and 143,201.98

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Solution

The fourth proportional to 219,633.51, 303,101.29 and 143,201.98 is: 197,623.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,633.51 : 303,101.29 = 143,201.98 : x
  2. Step 2: Convert to fraction form
    219,633.51/303,101.29 = 143,201.98/x
  3. Step 3: Cross multiply
    219,633.51x = 303,101.29 × 143,201.98
  4. Step 4: Simplify right side
    219,633.51x = 43,404,704,868.55
  5. Step 5: Solve for x
    x = 43,404,704,868.55/219,633.51
  6. Step 6: Final answer
    x = 197,623.33

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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.