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Finding the Fourth Proportional to 208,295.04, 312,304.32 and 68,004.48

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Solution

The fourth proportional to 208,295.04, 312,304.32 and 68,004.48 is: 101,961.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,295.04 : 312,304.32 = 68,004.48 : x
  2. Step 2: Convert to fraction form
    208,295.04/312,304.32 = 68,004.48/x
  3. Step 3: Cross multiply
    208,295.04x = 312,304.32 × 68,004.48
  4. Step 4: Simplify right side
    208,295.04x = 21,238,092,883.35
  5. Step 5: Solve for x
    x = 21,238,092,883.35/208,295.04
  6. Step 6: Final answer
    x = 101,961.59

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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.