Home / 228,015.24-342,121.20-122,813.16

Finding the Fourth Proportional to 228,015.24, 342,121.20 and 122,813.16

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Solution

The fourth proportional to 228,015.24, 342,121.20 and 122,813.16 is: 184,272.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,015.24 : 342,121.20 = 122,813.16 : x
  2. Step 2: Convert to fraction form
    228,015.24/342,121.20 = 122,813.16/x
  3. Step 3: Cross multiply
    228,015.24x = 342,121.20 × 122,813.16
  4. Step 4: Simplify right side
    228,015.24x = 42,016,985,674.99
  5. Step 5: Solve for x
    x = 42,016,985,674.99/228,015.24
  6. Step 6: Final answer
    x = 184,272.71

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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.