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Finding the Fourth Proportional to 300,321.95, 450,482.63 and 100,642.46

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Solution

The fourth proportional to 300,321.95, 450,482.63 and 100,642.46 is: 150,963.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,321.95 : 450,482.63 = 100,642.46 : x
  2. Step 2: Convert to fraction form
    300,321.95/450,482.63 = 100,642.46/x
  3. Step 3: Cross multiply
    300,321.95x = 450,482.63 × 100,642.46
  4. Step 4: Simplify right side
    300,321.95x = 45,337,677,314.84
  5. Step 5: Solve for x
    x = 45,337,677,314.84/300,321.95
  6. Step 6: Final answer
    x = 150,963.58

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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.