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Finding the Fourth Proportional to 228,324.45, 342,486.68 and 103,665.45

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Solution

The fourth proportional to 228,324.45, 342,486.68 and 103,665.45 is: 155,498.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,324.45 : 342,486.68 = 103,665.45 : x
  2. Step 2: Convert to fraction form
    228,324.45/342,486.68 = 103,665.45/x
  3. Step 3: Cross multiply
    228,324.45x = 342,486.68 × 103,665.45
  4. Step 4: Simplify right side
    228,324.45x = 35,504,035,282.88
  5. Step 5: Solve for x
    x = 35,504,035,282.88/228,324.45
  6. Step 6: Final answer
    x = 155,498.18

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1.5x scale

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.