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Finding the Fourth Proportional to 303,480.40, 455,220.60 and 303,480.40

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Solution

The fourth proportional to 303,480.40, 455,220.60 and 303,480.40 is: 455,220.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,480.40 : 455,220.60 = 303,480.40 : x
  2. Step 2: Convert to fraction form
    303,480.40/455,220.60 = 303,480.40/x
  3. Step 3: Cross multiply
    303,480.40x = 455,220.60 × 303,480.40
  4. Step 4: Simplify right side
    303,480.40x = 138,150,529,776.24
  5. Step 5: Solve for x
    x = 138,150,529,776.24/303,480.40
  6. Step 6: Final answer
    x = 455,220.60

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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.