Home / 300,632.36-451,017.66-90,274.28

Finding the Fourth Proportional to 300,632.36, 451,017.66 and 90,274.28

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Solution

The fourth proportional to 300,632.36, 451,017.66 and 90,274.28 is: 135,432.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,632.36 : 451,017.66 = 90,274.28 : x
  2. Step 2: Convert to fraction form
    300,632.36/451,017.66 = 90,274.28/x
  3. Step 3: Cross multiply
    300,632.36x = 451,017.66 × 90,274.28
  4. Step 4: Simplify right side
    300,632.36x = 40,715,294,523.78
  5. Step 5: Solve for x
    x = 40,715,294,523.78/300,632.36
  6. Step 6: Final answer
    x = 135,432.18

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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.