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Finding the Fourth Proportional to 358,978.93, 538,627.39 and 188,160.05

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Solution

The fourth proportional to 358,978.93, 538,627.39 and 188,160.05 is: 282,323.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,978.93 : 538,627.39 = 188,160.05 : x
  2. Step 2: Convert to fraction form
    358,978.93/538,627.39 = 188,160.05/x
  3. Step 3: Cross multiply
    358,978.93x = 538,627.39 × 188,160.05
  4. Step 4: Simplify right side
    358,978.93x = 101,348,157,509.94
  5. Step 5: Solve for x
    x = 101,348,157,509.94/358,978.93
  6. Step 6: Final answer
    x = 282,323.42

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.