Home / 208,728.80-288,021.42-116,853.06

Finding the Fourth Proportional to 208,728.80, 288,021.42 and 116,853.06

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Solution

The fourth proportional to 208,728.80, 288,021.42 and 116,853.06 is: 161,243.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,728.80 : 288,021.42 = 116,853.06 : x
  2. Step 2: Convert to fraction form
    208,728.80/288,021.42 = 116,853.06/x
  3. Step 3: Cross multiply
    208,728.80x = 288,021.42 × 116,853.06
  4. Step 4: Simplify right side
    208,728.80x = 33,656,185,352.63
  5. Step 5: Solve for x
    x = 33,656,185,352.63/208,728.80
  6. Step 6: Final answer
    x = 161,243.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.