Home / 240,138.03-360,450.78-120,280.86

Finding the Fourth Proportional to 240,138.03, 360,450.78 and 120,280.86

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Solution

The fourth proportional to 240,138.03, 360,450.78 and 120,280.86 is: 180,543.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,138.03 : 360,450.78 = 120,280.86 : x
  2. Step 2: Convert to fraction form
    240,138.03/360,450.78 = 120,280.86/x
  3. Step 3: Cross multiply
    240,138.03x = 360,450.78 × 120,280.86
  4. Step 4: Simplify right side
    240,138.03x = 43,355,329,806.07
  5. Step 5: Solve for x
    x = 43,355,329,806.07/240,138.03
  6. Step 6: Final answer
    x = 180,543.37

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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.