Home / 279,087.08-385,168.76-164,401.81

Finding the Fourth Proportional to 279,087.08, 385,168.76 and 164,401.81

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Solution

The fourth proportional to 279,087.08, 385,168.76 and 164,401.81 is: 226,891.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,087.08 : 385,168.76 = 164,401.81 : x
  2. Step 2: Convert to fraction form
    279,087.08/385,168.76 = 164,401.81/x
  3. Step 3: Cross multiply
    279,087.08x = 385,168.76 × 164,401.81
  4. Step 4: Simplify right side
    279,087.08x = 63,322,441,299.46
  5. Step 5: Solve for x
    x = 63,322,441,299.46/279,087.08
  6. Step 6: Final answer
    x = 226,891.34

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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.