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Finding the Fourth Proportional to 410,840.20, 616,211.70 and 111,302.20

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Solution

The fourth proportional to 410,840.20, 616,211.70 and 111,302.20 is: 166,940.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,840.20 : 616,211.70 = 111,302.20 : x
  2. Step 2: Convert to fraction form
    410,840.20/616,211.70 = 111,302.20/x
  3. Step 3: Cross multiply
    410,840.20x = 616,211.70 × 111,302.20
  4. Step 4: Simplify right side
    410,840.20x = 68,585,717,875.74
  5. Step 5: Solve for x
    x = 68,585,717,875.74/410,840.20
  6. Step 6: Final answer
    x = 166,940.13

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.