Home / 300,100.28-450,150.86-122,607.46

Finding the Fourth Proportional to 300,100.28, 450,150.86 and 122,607.46

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Solution

The fourth proportional to 300,100.28, 450,150.86 and 122,607.46 is: 183,911.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,100.28 : 450,150.86 = 122,607.46 : x
  2. Step 2: Convert to fraction form
    300,100.28/450,150.86 = 122,607.46/x
  3. Step 3: Cross multiply
    300,100.28x = 450,150.86 × 122,607.46
  4. Step 4: Simplify right side
    300,100.28x = 55,191,852,742.56
  5. Step 5: Solve for x
    x = 55,191,852,742.56/300,100.28
  6. Step 6: Final answer
    x = 183,911.37

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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.