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Finding the Fourth Proportional to 144,620.84, 200,778.90 and 140,290.58

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Solution

The fourth proportional to 144,620.84, 200,778.90 and 140,290.58 is: 194,767.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,620.84 : 200,778.90 = 140,290.58 : x
  2. Step 2: Convert to fraction form
    144,620.84/200,778.90 = 140,290.58/x
  3. Step 3: Cross multiply
    144,620.84x = 200,778.90 × 140,290.58
  4. Step 4: Simplify right side
    144,620.84x = 28,167,389,097.75
  5. Step 5: Solve for x
    x = 28,167,389,097.75/144,620.84
  6. Step 6: Final answer
    x = 194,767.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.