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Finding the Fourth Proportional to 228,879.74, 343,254 and 68,971.16

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Solution

The fourth proportional to 228,879.74, 343,254 and 68,971.16 is: 103,436.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,879.74 : 343,254 = 68,971.16 : x
  2. Step 2: Convert to fraction form
    228,879.74/343,254 = 68,971.16/x
  3. Step 3: Cross multiply
    228,879.74x = 343,254 × 68,971.16
  4. Step 4: Simplify right side
    228,879.74x = 23,674,626,554.64
  5. Step 5: Solve for x
    x = 23,674,626,554.64/228,879.74
  6. Step 6: Final answer
    x = 103,436.97

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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.