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Finding the Fourth Proportional to 188,367.71, 259,947.51 and 103,490.24

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Solution

The fourth proportional to 188,367.71, 259,947.51 and 103,490.24 is: 142,816.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,367.71 : 259,947.51 = 103,490.24 : x
  2. Step 2: Convert to fraction form
    188,367.71/259,947.51 = 103,490.24/x
  3. Step 3: Cross multiply
    188,367.71x = 259,947.51 × 103,490.24
  4. Step 4: Simplify right side
    188,367.71x = 26,902,030,197.30
  5. Step 5: Solve for x
    x = 26,902,030,197.30/188,367.71
  6. Step 6: Final answer
    x = 142,816.57

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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.