Home / 228,786.71-315,618.86-143,950.55

Finding the Fourth Proportional to 228,786.71, 315,618.86 and 143,950.55

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Solution

The fourth proportional to 228,786.71, 315,618.86 and 143,950.55 is: 198,584.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,786.71 : 315,618.86 = 143,950.55 : x
  2. Step 2: Convert to fraction form
    228,786.71/315,618.86 = 143,950.55/x
  3. Step 3: Cross multiply
    228,786.71x = 315,618.86 × 143,950.55
  4. Step 4: Simplify right side
    228,786.71x = 45,433,507,269.16
  5. Step 5: Solve for x
    x = 45,433,507,269.16/228,786.71
  6. Step 6: Final answer
    x = 198,584.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.