Home / 289,032.04-398,871.30-161,715.88

Finding the Fourth Proportional to 289,032.04, 398,871.30 and 161,715.88

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Solution

The fourth proportional to 289,032.04, 398,871.30 and 161,715.88 is: 223,171.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,032.04 : 398,871.30 = 161,715.88 : x
  2. Step 2: Convert to fraction form
    289,032.04/398,871.30 = 161,715.88/x
  3. Step 3: Cross multiply
    289,032.04x = 398,871.30 × 161,715.88
  4. Step 4: Simplify right side
    289,032.04x = 64,503,823,286.24
  5. Step 5: Solve for x
    x = 64,503,823,286.24/289,032.04
  6. Step 6: Final answer
    x = 223,171.88

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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.