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Finding the Fourth Proportional to 300,535.16, 450,846.66 and 90,189.68

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Solution

The fourth proportional to 300,535.16, 450,846.66 and 90,189.68 is: 135,297.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,535.16 : 450,846.66 = 90,189.68 : x
  2. Step 2: Convert to fraction form
    300,535.16/450,846.66 = 90,189.68/x
  3. Step 3: Cross multiply
    300,535.16x = 450,846.66 × 90,189.68
  4. Step 4: Simplify right side
    300,535.16x = 40,661,715,994.47
  5. Step 5: Solve for x
    x = 40,661,715,994.47/300,535.16
  6. Step 6: Final answer
    x = 135,297.70

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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.