Home / 300,129.04-450,194.32-122,636.05

Finding the Fourth Proportional to 300,129.04, 450,194.32 and 122,636.05

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Solution

The fourth proportional to 300,129.04, 450,194.32 and 122,636.05 is: 183,954.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,129.04 : 450,194.32 = 122,636.05 : x
  2. Step 2: Convert to fraction form
    300,129.04/450,194.32 = 122,636.05/x
  3. Step 3: Cross multiply
    300,129.04x = 450,194.32 × 122,636.05
  4. Step 4: Simplify right side
    300,129.04x = 55,210,051,014.59
  5. Step 5: Solve for x
    x = 55,210,051,014.59/300,129.04
  6. Step 6: Final answer
    x = 183,954.38

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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.