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Finding the Fourth Proportional to 180,378.80, 248,900.96 and 103,922.90

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Solution

The fourth proportional to 180,378.80, 248,900.96 and 103,922.90 is: 143,401.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,378.80 : 248,900.96 = 103,922.90 : x
  2. Step 2: Convert to fraction form
    180,378.80/248,900.96 = 103,922.90/x
  3. Step 3: Cross multiply
    180,378.80x = 248,900.96 × 103,922.90
  4. Step 4: Simplify right side
    180,378.80x = 25,866,509,575.98
  5. Step 5: Solve for x
    x = 25,866,509,575.98/180,378.80
  6. Step 6: Final answer
    x = 143,401.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.