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Finding the Fourth Proportional to 202,319.88, 303,518.88 and 77,651.16

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Solution

The fourth proportional to 202,319.88, 303,518.88 and 77,651.16 is: 116,491.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,319.88 : 303,518.88 = 77,651.16 : x
  2. Step 2: Convert to fraction form
    202,319.88/303,518.88 = 77,651.16/x
  3. Step 3: Cross multiply
    202,319.88x = 303,518.88 × 77,651.16
  4. Step 4: Simplify right side
    202,319.88x = 23,568,593,113.90
  5. Step 5: Solve for x
    x = 23,568,593,113.90/202,319.88
  6. Step 6: Final answer
    x = 116,491.73

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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.