Home / 279,485.82-385,690.59-152,161.92

Finding the Fourth Proportional to 279,485.82, 385,690.59 and 152,161.92

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Solution

The fourth proportional to 279,485.82, 385,690.59 and 152,161.92 is: 209,983.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,485.82 : 385,690.59 = 152,161.92 : x
  2. Step 2: Convert to fraction form
    279,485.82/385,690.59 = 152,161.92/x
  3. Step 3: Cross multiply
    279,485.82x = 385,690.59 × 152,161.92
  4. Step 4: Simplify right side
    279,485.82x = 58,687,420,700.33
  5. Step 5: Solve for x
    x = 58,687,420,700.33/279,485.82
  6. Step 6: Final answer
    x = 209,983.54

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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.