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Finding the Fourth Proportional to 375,127.96, 517,683 and 231,884.32

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Solution

The fourth proportional to 375,127.96, 517,683 and 231,884.32 is: 320,004.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,127.96 : 517,683 = 231,884.32 : x
  2. Step 2: Convert to fraction form
    375,127.96/517,683 = 231,884.32/x
  3. Step 3: Cross multiply
    375,127.96x = 517,683 × 231,884.32
  4. Step 4: Simplify right side
    375,127.96x = 120,042,570,430.56
  5. Step 5: Solve for x
    x = 120,042,570,430.56/375,127.96
  6. Step 6: Final answer
    x = 320,004.33

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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.