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Finding the Fourth Proportional to 188,947, 260,724.18 and 108,370.36

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Solution

The fourth proportional to 188,947, 260,724.18 and 108,370.36 is: 149,538.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,947 : 260,724.18 = 108,370.36 : x
  2. Step 2: Convert to fraction form
    188,947/260,724.18 = 108,370.36/x
  3. Step 3: Cross multiply
    188,947x = 260,724.18 × 108,370.36
  4. Step 4: Simplify right side
    188,947x = 28,254,773,247.30
  5. Step 5: Solve for x
    x = 28,254,773,247.30/188,947
  6. Step 6: Final answer
    x = 149,538.09

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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.