Home / 228,508.29-342,804.60-76,690.41

Finding the Fourth Proportional to 228,508.29, 342,804.60 and 76,690.41

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Solution

The fourth proportional to 228,508.29, 342,804.60 and 76,690.41 is: 115,049.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,508.29 : 342,804.60 = 76,690.41 : x
  2. Step 2: Convert to fraction form
    228,508.29/342,804.60 = 76,690.41/x
  3. Step 3: Cross multiply
    228,508.29x = 342,804.60 × 76,690.41
  4. Step 4: Simplify right side
    228,508.29x = 26,289,825,323.89
  5. Step 5: Solve for x
    x = 26,289,825,323.89/228,508.29
  6. Step 6: Final answer
    x = 115,049.77

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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.