Home / 288,996.30-398,895.10-168,161

Finding the Fourth Proportional to 288,996.30, 398,895.10 and 168,161

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Solution

The fourth proportional to 288,996.30, 398,895.10 and 168,161 is: 232,108.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,996.30 : 398,895.10 = 168,161 : x
  2. Step 2: Convert to fraction form
    288,996.30/398,895.10 = 168,161/x
  3. Step 3: Cross multiply
    288,996.30x = 398,895.10 × 168,161
  4. Step 4: Simplify right side
    288,996.30x = 67,078,598,911.10
  5. Step 5: Solve for x
    x = 67,078,598,911.10/288,996.30
  6. Step 6: Final answer
    x = 232,108.85

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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.