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Finding the Fourth Proportional to 143,451.75, 215,212.19 and 44,955.75

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Solution

The fourth proportional to 143,451.75, 215,212.19 and 44,955.75 is: 67,444.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,451.75 : 215,212.19 = 44,955.75 : x
  2. Step 2: Convert to fraction form
    143,451.75/215,212.19 = 44,955.75/x
  3. Step 3: Cross multiply
    143,451.75x = 215,212.19 × 44,955.75
  4. Step 4: Simplify right side
    143,451.75x = 9,675,025,185.81
  5. Step 5: Solve for x
    x = 9,675,025,185.81/143,451.75
  6. Step 6: Final answer
    x = 67,444.46

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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.