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Finding the Fourth Proportional to 100,351.47, 150,527.21 and 30,230.79

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Solution

The fourth proportional to 100,351.47, 150,527.21 and 30,230.79 is: 45,346.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,351.47 : 150,527.21 = 30,230.79 : x
  2. Step 2: Convert to fraction form
    100,351.47/150,527.21 = 30,230.79/x
  3. Step 3: Cross multiply
    100,351.47x = 150,527.21 × 30,230.79
  4. Step 4: Simplify right side
    100,351.47x = 4,550,556,323.64
  5. Step 5: Solve for x
    x = 4,550,556,323.64/100,351.47
  6. Step 6: Final answer
    x = 45,346.19

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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.