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Finding the Fourth Proportional to 355,723.41, 490,911.93 and 202,785.69

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Solution

The fourth proportional to 355,723.41, 490,911.93 and 202,785.69 is: 279,852.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,723.41 : 490,911.93 = 202,785.69 : x
  2. Step 2: Convert to fraction form
    355,723.41/490,911.93 = 202,785.69/x
  3. Step 3: Cross multiply
    355,723.41x = 490,911.93 × 202,785.69
  4. Step 4: Simplify right side
    355,723.41x = 99,549,914,454.28
  5. Step 5: Solve for x
    x = 99,549,914,454.28/355,723.41
  6. Step 6: Final answer
    x = 279,852.02

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