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Finding the Fourth Proportional to 230,485.21, 317,345.81 and 195,962.05

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Solution

The fourth proportional to 230,485.21, 317,345.81 and 195,962.05 is: 269,812.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,485.21 : 317,345.81 = 195,962.05 : x
  2. Step 2: Convert to fraction form
    230,485.21/317,345.81 = 195,962.05/x
  3. Step 3: Cross multiply
    230,485.21x = 317,345.81 × 195,962.05
  4. Step 4: Simplify right side
    230,485.21x = 62,187,735,486.51
  5. Step 5: Solve for x
    x = 62,187,735,486.51/230,485.21
  6. Step 6: Final answer
    x = 269,812.26

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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.