Home / 228,512.08-315,309.12-143,569

Finding the Fourth Proportional to 228,512.08, 315,309.12 and 143,569

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Solution

The fourth proportional to 228,512.08, 315,309.12 and 143,569 is: 198,101.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,512.08 : 315,309.12 = 143,569 : x
  2. Step 2: Convert to fraction form
    228,512.08/315,309.12 = 143,569/x
  3. Step 3: Cross multiply
    228,512.08x = 315,309.12 × 143,569
  4. Step 4: Simplify right side
    228,512.08x = 45,268,615,049.28
  5. Step 5: Solve for x
    x = 45,268,615,049.28/228,512.08
  6. Step 6: Final answer
    x = 198,101.63

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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.