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Finding the Fourth Proportional to 297,956.40, 411,179.76 and 163,820.40

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Solution

The fourth proportional to 297,956.40, 411,179.76 and 163,820.40 is: 226,072.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,956.40 : 411,179.76 = 163,820.40 : x
  2. Step 2: Convert to fraction form
    297,956.40/411,179.76 = 163,820.40/x
  3. Step 3: Cross multiply
    297,956.40x = 411,179.76 × 163,820.40
  4. Step 4: Simplify right side
    297,956.40x = 67,359,632,755.10
  5. Step 5: Solve for x
    x = 67,359,632,755.10/297,956.40
  6. Step 6: Final answer
    x = 226,072.11

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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.