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Finding the Fourth Proportional to 218,466.08, 301,505.88 and 133,639.60

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Solution

The fourth proportional to 218,466.08, 301,505.88 and 133,639.60 is: 184,436.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,466.08 : 301,505.88 = 133,639.60 : x
  2. Step 2: Convert to fraction form
    218,466.08/301,505.88 = 133,639.60/x
  3. Step 3: Cross multiply
    218,466.08x = 301,505.88 × 133,639.60
  4. Step 4: Simplify right side
    218,466.08x = 40,293,125,200.85
  5. Step 5: Solve for x
    x = 40,293,125,200.85/218,466.08
  6. Step 6: Final answer
    x = 184,436.53

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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.