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Finding the Fourth Proportional to 279,593.40, 385,849.82 and 158,745.93

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Solution

The fourth proportional to 279,593.40, 385,849.82 and 158,745.93 is: 219,075.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,593.40 : 385,849.82 = 158,745.93 : x
  2. Step 2: Convert to fraction form
    279,593.40/385,849.82 = 158,745.93/x
  3. Step 3: Cross multiply
    279,593.40x = 385,849.82 × 158,745.93
  4. Step 4: Simplify right side
    279,593.40x = 61,252,088,516.23
  5. Step 5: Solve for x
    x = 61,252,088,516.23/279,593.40
  6. Step 6: Final answer
    x = 219,075.59

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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.