Home / 300,977.34-451,416.80-90,566.07

Finding the Fourth Proportional to 300,977.34, 451,416.80 and 90,566.07

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Solution

The fourth proportional to 300,977.34, 451,416.80 and 90,566.07 is: 135,834.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,977.34 : 451,416.80 = 90,566.07 : x
  2. Step 2: Convert to fraction form
    300,977.34/451,416.80 = 90,566.07/x
  3. Step 3: Cross multiply
    300,977.34x = 451,416.80 × 90,566.07
  4. Step 4: Simplify right side
    300,977.34x = 40,883,045,055.15
  5. Step 5: Solve for x
    x = 40,883,045,055.15/300,977.34
  6. Step 6: Final answer
    x = 135,834.30

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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.