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Finding the Fourth Proportional to 188,903.75, 260,679.47 and 108,275.13

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Solution

The fourth proportional to 188,903.75, 260,679.47 and 108,275.13 is: 149,415.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,903.75 : 260,679.47 = 108,275.13 : x
  2. Step 2: Convert to fraction form
    188,903.75/260,679.47 = 108,275.13/x
  3. Step 3: Cross multiply
    188,903.75x = 260,679.47 × 108,275.13
  4. Step 4: Simplify right side
    188,903.75x = 28,225,102,961.21
  5. Step 5: Solve for x
    x = 28,225,102,961.21/188,903.75
  6. Step 6: Final answer
    x = 149,415.26

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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.