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Finding the Fourth Proportional to 279,649.79, 418,692.98 and 151,105.52

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Solution

The fourth proportional to 279,649.79, 418,692.98 and 151,105.52 is: 226,235.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,649.79 : 418,692.98 = 151,105.52 : x
  2. Step 2: Convert to fraction form
    279,649.79/418,692.98 = 151,105.52/x
  3. Step 3: Cross multiply
    279,649.79x = 418,692.98 × 151,105.52
  4. Step 4: Simplify right side
    279,649.79x = 63,266,821,887.75
  5. Step 5: Solve for x
    x = 63,266,821,887.75/279,649.79
  6. Step 6: Final answer
    x = 226,235.90

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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.