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Finding the Fourth Proportional to 303,484.86, 455,276.74 and 113,959.90

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Solution

The fourth proportional to 303,484.86, 455,276.74 and 113,959.90 is: 170,958.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,484.86 : 455,276.74 = 113,959.90 : x
  2. Step 2: Convert to fraction form
    303,484.86/455,276.74 = 113,959.90/x
  3. Step 3: Cross multiply
    303,484.86x = 455,276.74 × 113,959.90
  4. Step 4: Simplify right side
    303,484.86x = 51,883,291,762.73
  5. Step 5: Solve for x
    x = 51,883,291,762.73/303,484.86
  6. Step 6: Final answer
    x = 170,958.42

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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.