Home / 305,500.05-458,140.72-105,766.80

Finding the Fourth Proportional to 305,500.05, 458,140.72 and 105,766.80

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Solution

The fourth proportional to 305,500.05, 458,140.72 and 105,766.80 is: 158,612.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,500.05 : 458,140.72 = 105,766.80 : x
  2. Step 2: Convert to fraction form
    305,500.05/458,140.72 = 105,766.80/x
  3. Step 3: Cross multiply
    305,500.05x = 458,140.72 × 105,766.80
  4. Step 4: Simplify right side
    305,500.05x = 48,456,077,375.26
  5. Step 5: Solve for x
    x = 48,456,077,375.26/305,500.05
  6. Step 6: Final answer
    x = 158,612.34

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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.