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Finding the Fourth Proportional to 362,619.76, 500,449.08 and 219,415.12

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Solution

The fourth proportional to 362,619.76, 500,449.08 and 219,415.12 is: 302,813.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,619.76 : 500,449.08 = 219,415.12 : x
  2. Step 2: Convert to fraction form
    362,619.76/500,449.08 = 219,415.12/x
  3. Step 3: Cross multiply
    362,619.76x = 500,449.08 × 219,415.12
  4. Step 4: Simplify right side
    362,619.76x = 109,806,094,942.09
  5. Step 5: Solve for x
    x = 109,806,094,942.09/362,619.76
  6. Step 6: Final answer
    x = 302,813.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.