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Finding the Fourth Proportional to 303,300.30, 455,132.70 and 125,788.80

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Solution

The fourth proportional to 303,300.30, 455,132.70 and 125,788.80 is: 188,758.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,300.30 : 455,132.70 = 125,788.80 : x
  2. Step 2: Convert to fraction form
    303,300.30/455,132.70 = 125,788.80/x
  3. Step 3: Cross multiply
    303,300.30x = 455,132.70 × 125,788.80
  4. Step 4: Simplify right side
    303,300.30x = 57,250,596,173.76
  5. Step 5: Solve for x
    x = 57,250,596,173.76/303,300.30
  6. Step 6: Final answer
    x = 188,758.79

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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.