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Finding the Fourth Proportional to 213,858.80, 295,121.57 and 118,363.44

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Solution

The fourth proportional to 213,858.80, 295,121.57 and 118,363.44 is: 163,339.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,858.80 : 295,121.57 = 118,363.44 : x
  2. Step 2: Convert to fraction form
    213,858.80/295,121.57 = 118,363.44/x
  3. Step 3: Cross multiply
    213,858.80x = 295,121.57 × 118,363.44
  4. Step 4: Simplify right side
    213,858.80x = 34,931,603,651.58
  5. Step 5: Solve for x
    x = 34,931,603,651.58/213,858.80
  6. Step 6: Final answer
    x = 163,339.57

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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.