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Finding the Fourth Proportional to 279,575.94, 385,865.34 and 164,847.74

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Solution

The fourth proportional to 279,575.94, 385,865.34 and 164,847.74 is: 227,519.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,575.94 : 385,865.34 = 164,847.74 : x
  2. Step 2: Convert to fraction form
    279,575.94/385,865.34 = 164,847.74/x
  3. Step 3: Cross multiply
    279,575.94x = 385,865.34 × 164,847.74
  4. Step 4: Simplify right side
    279,575.94x = 63,609,029,243.33
  5. Step 5: Solve for x
    x = 63,609,029,243.33/279,575.94
  6. Step 6: Final answer
    x = 227,519.68

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1.5x scale

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.