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Finding the Fourth Proportional to 202,522.63, 279,480.33 and 111,878.64

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Solution

The fourth proportional to 202,522.63, 279,480.33 and 111,878.64 is: 154,392.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,522.63 : 279,480.33 = 111,878.64 : x
  2. Step 2: Convert to fraction form
    202,522.63/279,480.33 = 111,878.64/x
  3. Step 3: Cross multiply
    202,522.63x = 279,480.33 × 111,878.64
  4. Step 4: Simplify right side
    202,522.63x = 31,267,879,227.15
  5. Step 5: Solve for x
    x = 31,267,879,227.15/202,522.63
  6. Step 6: Final answer
    x = 154,392.03

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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.