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Finding the Fourth Proportional to 201,010.80, 281,065.20 and 201,010.80

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Solution

The fourth proportional to 201,010.80, 281,065.20 and 201,010.80 is: 281,065.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,010.80 : 281,065.20 = 201,010.80 : x
  2. Step 2: Convert to fraction form
    201,010.80/281,065.20 = 201,010.80/x
  3. Step 3: Cross multiply
    201,010.80x = 281,065.20 × 201,010.80
  4. Step 4: Simplify right side
    201,010.80x = 56,497,140,704.16
  5. Step 5: Solve for x
    x = 56,497,140,704.16/201,010.80
  6. Step 6: Final answer
    x = 281,065.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.