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Finding the Fourth Proportional to 201,952.34, 278,692.84 and 111,308.36

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Solution

The fourth proportional to 201,952.34, 278,692.84 and 111,308.36 is: 153,604.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,952.34 : 278,692.84 = 111,308.36 : x
  2. Step 2: Convert to fraction form
    201,952.34/278,692.84 = 111,308.36/x
  3. Step 3: Cross multiply
    201,952.34x = 278,692.84 × 111,308.36
  4. Step 4: Simplify right side
    201,952.34x = 31,020,841,083.70
  5. Step 5: Solve for x
    x = 31,020,841,083.70/201,952.34
  6. Step 6: Final answer
    x = 153,604.76

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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.