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Finding the Fourth Proportional to 208,844.40, 313,266.60 and 103,868.40

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Solution

The fourth proportional to 208,844.40, 313,266.60 and 103,868.40 is: 155,802.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,844.40 : 313,266.60 = 103,868.40 : x
  2. Step 2: Convert to fraction form
    208,844.40/313,266.60 = 103,868.40/x
  3. Step 3: Cross multiply
    208,844.40x = 313,266.60 × 103,868.40
  4. Step 4: Simplify right side
    208,844.40x = 32,538,500,515.44
  5. Step 5: Solve for x
    x = 32,538,500,515.44/208,844.40
  6. Step 6: Final answer
    x = 155,802.60

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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.