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Finding the Fourth Proportional to 303,400.16, 455,303.23 and 125,907.16

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Solution

The fourth proportional to 303,400.16, 455,303.23 and 125,907.16 is: 188,944.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,400.16 : 455,303.23 = 125,907.16 : x
  2. Step 2: Convert to fraction form
    303,400.16/455,303.23 = 125,907.16/x
  3. Step 3: Cross multiply
    303,400.16x = 455,303.23 × 125,907.16
  4. Step 4: Simplify right side
    303,400.16x = 57,325,936,028.79
  5. Step 5: Solve for x
    x = 57,325,936,028.79/303,400.16
  6. Step 6: Final answer
    x = 188,944.98

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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.