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Finding the Fourth Proportional to 180,858.32, 271,012.08 and 91,978.64

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Solution

The fourth proportional to 180,858.32, 271,012.08 and 91,978.64 is: 137,827.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,858.32 : 271,012.08 = 91,978.64 : x
  2. Step 2: Convert to fraction form
    180,858.32/271,012.08 = 91,978.64/x
  3. Step 3: Cross multiply
    180,858.32x = 271,012.08 × 91,978.64
  4. Step 4: Simplify right side
    180,858.32x = 24,927,322,541.97
  5. Step 5: Solve for x
    x = 24,927,322,541.97/180,858.32
  6. Step 6: Final answer
    x = 137,827.90

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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.