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Finding the Fourth Proportional to 317,997.36, 438,843.96 and 174,771

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Solution

The fourth proportional to 317,997.36, 438,843.96 and 174,771 is: 241,188.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,997.36 : 438,843.96 = 174,771 : x
  2. Step 2: Convert to fraction form
    317,997.36/438,843.96 = 174,771/x
  3. Step 3: Cross multiply
    317,997.36x = 438,843.96 × 174,771
  4. Step 4: Simplify right side
    317,997.36x = 76,697,197,733.16
  5. Step 5: Solve for x
    x = 76,697,197,733.16/317,997.36
  6. Step 6: Final answer
    x = 241,188.16

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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.