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Finding the Fourth Proportional to 300,037.20, 450,055.80 and 100,364.10

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Solution

The fourth proportional to 300,037.20, 450,055.80 and 100,364.10 is: 150,546.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,037.20 : 450,055.80 = 100,364.10 : x
  2. Step 2: Convert to fraction form
    300,037.20/450,055.80 = 100,364.10/x
  3. Step 3: Cross multiply
    300,037.20x = 450,055.80 × 100,364.10
  4. Step 4: Simplify right side
    300,037.20x = 45,169,445,316.78
  5. Step 5: Solve for x
    x = 45,169,445,316.78/300,037.20
  6. Step 6: Final answer
    x = 150,546.15

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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.