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Finding the Fourth Proportional to 201,303.10, 301,991.10 and 101,211.40

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Solution

The fourth proportional to 201,303.10, 301,991.10 and 101,211.40 is: 151,835.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,303.10 : 301,991.10 = 101,211.40 : x
  2. Step 2: Convert to fraction form
    201,303.10/301,991.10 = 101,211.40/x
  3. Step 3: Cross multiply
    201,303.10x = 301,991.10 × 101,211.40
  4. Step 4: Simplify right side
    201,303.10x = 30,564,942,018.54
  5. Step 5: Solve for x
    x = 30,564,942,018.54/201,303.10
  6. Step 6: Final answer
    x = 151,835.43

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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.