Home / 228,982.59-315,789.26-142,949.52

Finding the Fourth Proportional to 228,982.59, 315,789.26 and 142,949.52

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Solution

The fourth proportional to 228,982.59, 315,789.26 and 142,949.52 is: 197,141.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,982.59 : 315,789.26 = 142,949.52 : x
  2. Step 2: Convert to fraction form
    228,982.59/315,789.26 = 142,949.52/x
  3. Step 3: Cross multiply
    228,982.59x = 315,789.26 × 142,949.52
  4. Step 4: Simplify right side
    228,982.59x = 45,141,922,423.41
  5. Step 5: Solve for x
    x = 45,141,922,423.41/228,982.59
  6. Step 6: Final answer
    x = 197,141.29

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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.