Home / 300,211.07-450,371.16-142,438.05

Finding the Fourth Proportional to 300,211.07, 450,371.16 and 142,438.05

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Solution

The fourth proportional to 300,211.07, 450,371.16 and 142,438.05 is: 213,682.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,211.07 : 450,371.16 = 142,438.05 : x
  2. Step 2: Convert to fraction form
    300,211.07/450,371.16 = 142,438.05/x
  3. Step 3: Cross multiply
    300,211.07x = 450,371.16 × 142,438.05
  4. Step 4: Simplify right side
    300,211.07x = 64,149,989,806.64
  5. Step 5: Solve for x
    x = 64,149,989,806.64/300,211.07
  6. Step 6: Final answer
    x = 213,682.96

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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.