Home / 279,669.55-385,925.80-164,921.88

Finding the Fourth Proportional to 279,669.55, 385,925.80 and 164,921.88

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Solution

The fourth proportional to 279,669.55, 385,925.80 and 164,921.88 is: 227,581.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,669.55 : 385,925.80 = 164,921.88 : x
  2. Step 2: Convert to fraction form
    279,669.55/385,925.80 = 164,921.88/x
  3. Step 3: Cross multiply
    279,669.55x = 385,925.80 × 164,921.88
  4. Step 4: Simplify right side
    279,669.55x = 63,647,608,476.50
  5. Step 5: Solve for x
    x = 63,647,608,476.50/279,669.55
  6. Step 6: Final answer
    x = 227,581.47

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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.