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Finding the Fourth Proportional to 303,055.83, 455,580.32 and 281,133.86

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Solution

The fourth proportional to 303,055.83, 455,580.32 and 281,133.86 is: 422,625.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,055.83 : 455,580.32 = 281,133.86 : x
  2. Step 2: Convert to fraction form
    303,055.83/455,580.32 = 281,133.86/x
  3. Step 3: Cross multiply
    303,055.83x = 455,580.32 × 281,133.86
  4. Step 4: Simplify right side
    303,055.83x = 128,079,050,218.06
  5. Step 5: Solve for x
    x = 128,079,050,218.06/303,055.83
  6. Step 6: Final answer
    x = 422,625.26

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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.