Home / 209,277.28-313,570.86-120,605.32

Finding the Fourth Proportional to 209,277.28, 313,570.86 and 120,605.32

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Solution

The fourth proportional to 209,277.28, 313,570.86 and 120,605.32 is: 180,709.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,277.28 : 313,570.86 = 120,605.32 : x
  2. Step 2: Convert to fraction form
    209,277.28/313,570.86 = 120,605.32/x
  3. Step 3: Cross multiply
    209,277.28x = 313,570.86 × 120,605.32
  4. Step 4: Simplify right side
    209,277.28x = 37,818,313,912.98
  5. Step 5: Solve for x
    x = 37,818,313,912.98/209,277.28
  6. Step 6: Final answer
    x = 180,709.12

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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.