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Finding the Fourth Proportional to 100,394.56, 150,606.06 and 30,279.16

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Solution

The fourth proportional to 100,394.56, 150,606.06 and 30,279.16 is: 45,423.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,394.56 : 150,606.06 = 30,279.16 : x
  2. Step 2: Convert to fraction form
    100,394.56/150,606.06 = 30,279.16/x
  3. Step 3: Cross multiply
    100,394.56x = 150,606.06 × 30,279.16
  4. Step 4: Simplify right side
    100,394.56x = 4,560,224,987.71
  5. Step 5: Solve for x
    x = 4,560,224,987.71/100,394.56
  6. Step 6: Final answer
    x = 45,423.03

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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.