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Finding the Fourth Proportional to 200,002.60, 300,032.70 and 106,515.40

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Solution

The fourth proportional to 200,002.60, 300,032.70 and 106,515.40 is: 159,788.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,002.60 : 300,032.70 = 106,515.40 : x
  2. Step 2: Convert to fraction form
    200,002.60/300,032.70 = 106,515.40/x
  3. Step 3: Cross multiply
    200,002.60x = 300,032.70 × 106,515.40
  4. Step 4: Simplify right side
    200,002.60x = 31,958,103,053.58
  5. Step 5: Solve for x
    x = 31,958,103,053.58/200,002.60
  6. Step 6: Final answer
    x = 159,788.44

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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.