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Finding the Fourth Proportional to 345,059.96, 517,584.78 and 108,416.84

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Solution

The fourth proportional to 345,059.96, 517,584.78 and 108,416.84 is: 162,623.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,059.96 : 517,584.78 = 108,416.84 : x
  2. Step 2: Convert to fraction form
    345,059.96/517,584.78 = 108,416.84/x
  3. Step 3: Cross multiply
    345,059.96x = 517,584.78 × 108,416.84
  4. Step 4: Simplify right side
    345,059.96x = 56,114,906,279.70
  5. Step 5: Solve for x
    x = 56,114,906,279.70/345,059.96
  6. Step 6: Final answer
    x = 162,623.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.