Home / 279,173.12-385,131.84-165,931.52

Finding the Fourth Proportional to 279,173.12, 385,131.84 and 165,931.52

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Solution

The fourth proportional to 279,173.12, 385,131.84 and 165,931.52 is: 228,909.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,173.12 : 385,131.84 = 165,931.52 : x
  2. Step 2: Convert to fraction form
    279,173.12/385,131.84 = 165,931.52/x
  3. Step 3: Cross multiply
    279,173.12x = 385,131.84 × 165,931.52
  4. Step 4: Simplify right side
    279,173.12x = 63,905,511,611.60
  5. Step 5: Solve for x
    x = 63,905,511,611.60/279,173.12
  6. Step 6: Final answer
    x = 228,909.97

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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.