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Finding the Fourth Proportional to 201,208.10, 301,812.15 and 101,329.70

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Solution

The fourth proportional to 201,208.10, 301,812.15 and 101,329.70 is: 151,994.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,208.10 : 301,812.15 = 101,329.70 : x
  2. Step 2: Convert to fraction form
    201,208.10/301,812.15 = 101,329.70/x
  3. Step 3: Cross multiply
    201,208.10x = 301,812.15 × 101,329.70
  4. Step 4: Simplify right side
    201,208.10x = 30,582,534,615.86
  5. Step 5: Solve for x
    x = 30,582,534,615.86/201,208.10
  6. Step 6: Final answer
    x = 151,994.55

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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.