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Finding the Fourth Proportional to 305,522.12, 458,173.80 and 105,788.88

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Solution

The fourth proportional to 305,522.12, 458,173.80 and 105,788.88 is: 158,645.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,522.12 : 458,173.80 = 105,788.88 : x
  2. Step 2: Convert to fraction form
    305,522.12/458,173.80 = 105,788.88/x
  3. Step 3: Cross multiply
    305,522.12x = 458,173.80 × 105,788.88
  4. Step 4: Simplify right side
    305,522.12x = 48,469,693,147.34
  5. Step 5: Solve for x
    x = 48,469,693,147.34/305,522.12
  6. Step 6: Final answer
    x = 158,645.45

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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.