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Finding the Fourth Proportional to 298,180.64, 411,492 and 162,215.84

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Solution

The fourth proportional to 298,180.64, 411,492 and 162,215.84 is: 223,859.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,180.64 : 411,492 = 162,215.84 : x
  2. Step 2: Convert to fraction form
    298,180.64/411,492 = 162,215.84/x
  3. Step 3: Cross multiply
    298,180.64x = 411,492 × 162,215.84
  4. Step 4: Simplify right side
    298,180.64x = 66,750,520,433.28
  5. Step 5: Solve for x
    x = 66,750,520,433.28/298,180.64
  6. Step 6: Final answer
    x = 223,859.34

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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.