Home / 228,589.27-315,607.32-142,679.12

Finding the Fourth Proportional to 228,589.27, 315,607.32 and 142,679.12

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Solution

The fourth proportional to 228,589.27, 315,607.32 and 142,679.12 is: 196,993.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,589.27 : 315,607.32 = 142,679.12 : x
  2. Step 2: Convert to fraction form
    228,589.27/315,607.32 = 142,679.12/x
  3. Step 3: Cross multiply
    228,589.27x = 315,607.32 × 142,679.12
  4. Step 4: Simplify right side
    228,589.27x = 45,030,573,105.12
  5. Step 5: Solve for x
    x = 45,030,573,105.12/228,589.27
  6. Step 6: Final answer
    x = 196,993.38

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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.