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Finding the Fourth Proportional to 303,322.80, 455,166.45 and 125,811.30

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Solution

The fourth proportional to 303,322.80, 455,166.45 and 125,811.30 is: 188,792.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,322.80 : 455,166.45 = 125,811.30 : x
  2. Step 2: Convert to fraction form
    303,322.80/455,166.45 = 125,811.30/x
  3. Step 3: Cross multiply
    303,322.80x = 455,166.45 × 125,811.30
  4. Step 4: Simplify right side
    303,322.80x = 57,265,082,790.89
  5. Step 5: Solve for x
    x = 57,265,082,790.89/303,322.80
  6. Step 6: Final answer
    x = 188,792.54

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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.