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Finding the Fourth Proportional to 200,029.10, 300,043.65 and 190,843.70

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Solution

The fourth proportional to 200,029.10, 300,043.65 and 190,843.70 is: 286,265.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,029.10 : 300,043.65 = 190,843.70 : x
  2. Step 2: Convert to fraction form
    200,029.10/300,043.65 = 190,843.70/x
  3. Step 3: Cross multiply
    200,029.10x = 300,043.65 × 190,843.70
  4. Step 4: Simplify right side
    200,029.10x = 57,261,440,327.51
  5. Step 5: Solve for x
    x = 57,261,440,327.51/200,029.10
  6. Step 6: Final answer
    x = 286,265.55

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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.