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Finding the Fourth Proportional to 358,840.60, 538,131.30 and 181,288.60

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Solution

The fourth proportional to 358,840.60, 538,131.30 and 181,288.60 is: 271,867.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,840.60 : 538,131.30 = 181,288.60 : x
  2. Step 2: Convert to fraction form
    358,840.60/538,131.30 = 181,288.60/x
  3. Step 3: Cross multiply
    358,840.60x = 538,131.30 × 181,288.60
  4. Step 4: Simplify right side
    358,840.60x = 97,557,069,993.18
  5. Step 5: Solve for x
    x = 97,557,069,993.18/358,840.60
  6. Step 6: Final answer
    x = 271,867.43

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1.5x scale

Why These Related Problems?

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