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Finding the Fourth Proportional to 188,673.66, 260,364.42 and 103,790.88

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Solution

The fourth proportional to 188,673.66, 260,364.42 and 103,790.88 is: 143,228.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,673.66 : 260,364.42 = 103,790.88 : x
  2. Step 2: Convert to fraction form
    188,673.66/260,364.42 = 103,790.88/x
  3. Step 3: Cross multiply
    188,673.66x = 260,364.42 × 103,790.88
  4. Step 4: Simplify right side
    188,673.66x = 27,023,452,272.49
  5. Step 5: Solve for x
    x = 27,023,452,272.49/188,673.66
  6. Step 6: Final answer
    x = 143,228.54

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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.