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Finding the Fourth Proportional to 350,451.89, 525,677.78 and 84,212.40

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Solution

The fourth proportional to 350,451.89, 525,677.78 and 84,212.40 is: 126,318.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,451.89 : 525,677.78 = 84,212.40 : x
  2. Step 2: Convert to fraction form
    350,451.89/525,677.78 = 84,212.40/x
  3. Step 3: Cross multiply
    350,451.89x = 525,677.78 × 84,212.40
  4. Step 4: Simplify right side
    350,451.89x = 44,268,587,766.27
  5. Step 5: Solve for x
    x = 44,268,587,766.27/350,451.89
  6. Step 6: Final answer
    x = 126,318.59

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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.