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Finding the Fourth Proportional to 305,738.80, 458,608.20 and 95,376.40

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Solution

The fourth proportional to 305,738.80, 458,608.20 and 95,376.40 is: 143,064.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,738.80 : 458,608.20 = 95,376.40 : x
  2. Step 2: Convert to fraction form
    305,738.80/458,608.20 = 95,376.40/x
  3. Step 3: Cross multiply
    305,738.80x = 458,608.20 × 95,376.40
  4. Step 4: Simplify right side
    305,738.80x = 43,740,399,126.48
  5. Step 5: Solve for x
    x = 43,740,399,126.48/305,738.80
  6. Step 6: Final answer
    x = 143,064.60

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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.