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Finding the Fourth Proportional to 325,515.01, 488,268.87 and 115,103.74

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Solution

The fourth proportional to 325,515.01, 488,268.87 and 115,103.74 is: 172,654.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,515.01 : 488,268.87 = 115,103.74 : x
  2. Step 2: Convert to fraction form
    325,515.01/488,268.87 = 115,103.74/x
  3. Step 3: Cross multiply
    325,515.01x = 488,268.87 × 115,103.74
  4. Step 4: Simplify right side
    325,515.01x = 56,201,570,045.71
  5. Step 5: Solve for x
    x = 56,201,570,045.71/325,515.01
  6. Step 6: Final answer
    x = 172,654.31

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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.