Home / 300,060.28-450,311.94-142,289.26

Finding the Fourth Proportional to 300,060.28, 450,311.94 and 142,289.26

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Solution

The fourth proportional to 300,060.28, 450,311.94 and 142,289.26 is: 213,538.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,060.28 : 450,311.94 = 142,289.26 : x
  2. Step 2: Convert to fraction form
    300,060.28/450,311.94 = 142,289.26/x
  3. Step 3: Cross multiply
    300,060.28x = 450,311.94 × 142,289.26
  4. Step 4: Simplify right side
    300,060.28x = 64,074,552,711.76
  5. Step 5: Solve for x
    x = 64,074,552,711.76/300,060.28
  6. Step 6: Final answer
    x = 213,538.94

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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.