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Finding the Fourth Proportional to 228,622.77, 342,879.08 and 68,665.05

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Solution

The fourth proportional to 228,622.77, 342,879.08 and 68,665.05 is: 102,981.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,622.77 : 342,879.08 = 68,665.05 : x
  2. Step 2: Convert to fraction form
    228,622.77/342,879.08 = 68,665.05/x
  3. Step 3: Cross multiply
    228,622.77x = 342,879.08 × 68,665.05
  4. Step 4: Simplify right side
    228,622.77x = 23,543,808,828.83
  5. Step 5: Solve for x
    x = 23,543,808,828.83/228,622.77
  6. Step 6: Final answer
    x = 102,981.03

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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.