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Finding the Fourth Proportional to 200,168.51, 299,920.58 and 140,879.63

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Solution

The fourth proportional to 200,168.51, 299,920.58 and 140,879.63 is: 211,085.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,168.51 : 299,920.58 = 140,879.63 : x
  2. Step 2: Convert to fraction form
    200,168.51/299,920.58 = 140,879.63/x
  3. Step 3: Cross multiply
    200,168.51x = 299,920.58 × 140,879.63
  4. Step 4: Simplify right side
    200,168.51x = 42,252,698,135.78
  5. Step 5: Solve for x
    x = 42,252,698,135.78/200,168.51
  6. Step 6: Final answer
    x = 211,085.65

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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.