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Finding the Fourth Proportional to 454,468.40, 681,702.60 and 134,631.80

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Solution

The fourth proportional to 454,468.40, 681,702.60 and 134,631.80 is: 201,947.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,468.40 : 681,702.60 = 134,631.80 : x
  2. Step 2: Convert to fraction form
    454,468.40/681,702.60 = 134,631.80/x
  3. Step 3: Cross multiply
    454,468.40x = 681,702.60 × 134,631.80
  4. Step 4: Simplify right side
    454,468.40x = 91,778,848,102.68
  5. Step 5: Solve for x
    x = 91,778,848,102.68/454,468.40
  6. Step 6: Final answer
    x = 201,947.70

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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.