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Finding the Fourth Proportional to 188,775.27, 260,509.73 and 103,892.40

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Solution

The fourth proportional to 188,775.27, 260,509.73 and 103,892.40 is: 143,371.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,775.27 : 260,509.73 = 103,892.40 : x
  2. Step 2: Convert to fraction form
    188,775.27/260,509.73 = 103,892.40/x
  3. Step 3: Cross multiply
    188,775.27x = 260,509.73 × 103,892.40
  4. Step 4: Simplify right side
    188,775.27x = 27,064,980,553.59
  5. Step 5: Solve for x
    x = 27,064,980,553.59/188,775.27
  6. Step 6: Final answer
    x = 143,371.43

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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.