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Finding the Fourth Proportional to 279,593.16, 385,849.49 and 158,745.69

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Solution

The fourth proportional to 279,593.16, 385,849.49 and 158,745.69 is: 219,075.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,593.16 : 385,849.49 = 158,745.69 : x
  2. Step 2: Convert to fraction form
    279,593.16/385,849.49 = 158,745.69/x
  3. Step 3: Cross multiply
    279,593.16x = 385,849.49 × 158,745.69
  4. Step 4: Simplify right side
    279,593.16x = 61,251,943,817.67
  5. Step 5: Solve for x
    x = 61,251,943,817.67/279,593.16
  6. Step 6: Final answer
    x = 219,075.26

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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.