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Finding the Fourth Proportional to 208,907.04, 313,294.08 and 68,633.28

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Solution

The fourth proportional to 208,907.04, 313,294.08 and 68,633.28 is: 102,928.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,907.04 : 313,294.08 = 68,633.28 : x
  2. Step 2: Convert to fraction form
    208,907.04/313,294.08 = 68,633.28/x
  3. Step 3: Cross multiply
    208,907.04x = 313,294.08 × 68,633.28
  4. Step 4: Simplify right side
    208,907.04x = 21,502,400,314.98
  5. Step 5: Solve for x
    x = 21,502,400,314.98/208,907.04
  6. Step 6: Final answer
    x = 102,928.08

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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.