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Finding the Fourth Proportional to 303,857.06, 455,785.80 and 79,216.94

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Solution

The fourth proportional to 303,857.06, 455,785.80 and 79,216.94 is: 118,825.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,857.06 : 455,785.80 = 79,216.94 : x
  2. Step 2: Convert to fraction form
    303,857.06/455,785.80 = 79,216.94/x
  3. Step 3: Cross multiply
    303,857.06x = 455,785.80 × 79,216.94
  4. Step 4: Simplify right side
    303,857.06x = 36,105,956,371.45
  5. Step 5: Solve for x
    x = 36,105,956,371.45/303,857.06
  6. Step 6: Final answer
    x = 118,825.46

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1.5x scale

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.