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Finding the Fourth Proportional to 325,636.90, 488,460.39 and 115,127.62

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Solution

The fourth proportional to 325,636.90, 488,460.39 and 115,127.62 is: 172,693.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,636.90 : 488,460.39 = 115,127.62 : x
  2. Step 2: Convert to fraction form
    325,636.90/488,460.39 = 115,127.62/x
  3. Step 3: Cross multiply
    325,636.90x = 488,460.39 × 115,127.62
  4. Step 4: Simplify right side
    325,636.90x = 56,235,282,164.97
  5. Step 5: Solve for x
    x = 56,235,282,164.97/325,636.90
  6. Step 6: Final answer
    x = 172,693.21

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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.