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Finding the Fourth Proportional to 224,354.79, 309,615.45 and 122,381.97

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Solution

The fourth proportional to 224,354.79, 309,615.45 and 122,381.97 is: 168,890.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,354.79 : 309,615.45 = 122,381.97 : x
  2. Step 2: Convert to fraction form
    224,354.79/309,615.45 = 122,381.97/x
  3. Step 3: Cross multiply
    224,354.79x = 309,615.45 × 122,381.97
  4. Step 4: Simplify right side
    224,354.79x = 37,891,348,713.44
  5. Step 5: Solve for x
    x = 37,891,348,713.44/224,354.79
  6. Step 6: Final answer
    x = 168,890.30

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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.