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Finding the Fourth Proportional to 188,803.31, 260,555.96 and 103,928.27

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Solution

The fourth proportional to 188,803.31, 260,555.96 and 103,928.27 is: 143,425.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,803.31 : 260,555.96 = 103,928.27 : x
  2. Step 2: Convert to fraction form
    188,803.31/260,555.96 = 103,928.27/x
  3. Step 3: Cross multiply
    188,803.31x = 260,555.96 × 103,928.27
  4. Step 4: Simplify right side
    188,803.31x = 27,079,130,160.99
  5. Step 5: Solve for x
    x = 27,079,130,160.99/188,803.31
  6. Step 6: Final answer
    x = 143,425.08

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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.