Home / 300,922.89-451,312.70-121,008.75

Finding the Fourth Proportional to 300,922.89, 451,312.70 and 121,008.75

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Solution

The fourth proportional to 300,922.89, 451,312.70 and 121,008.75 is: 181,484.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,922.89 : 451,312.70 = 121,008.75 : x
  2. Step 2: Convert to fraction form
    300,922.89/451,312.70 = 121,008.75/x
  3. Step 3: Cross multiply
    300,922.89x = 451,312.70 × 121,008.75
  4. Step 4: Simplify right side
    300,922.89x = 54,612,785,081.08
  5. Step 5: Solve for x
    x = 54,612,785,081.08/300,922.89
  6. Step 6: Final answer
    x = 181,484.32

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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.