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Finding the Fourth Proportional to 201,897.99, 303,034.50 and 102,128.67

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Solution

The fourth proportional to 201,897.99, 303,034.50 and 102,128.67 is: 153,287.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,897.99 : 303,034.50 = 102,128.67 : x
  2. Step 2: Convert to fraction form
    201,897.99/303,034.50 = 102,128.67/x
  3. Step 3: Cross multiply
    201,897.99x = 303,034.50 × 102,128.67
  4. Step 4: Simplify right side
    201,897.99x = 30,948,510,449.12
  5. Step 5: Solve for x
    x = 30,948,510,449.12/201,897.99
  6. Step 6: Final answer
    x = 153,287.86

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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.