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Finding the Fourth Proportional to 351,502.61, 485,073.77 and 190,358.37

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Solution

The fourth proportional to 351,502.61, 485,073.77 and 190,358.37 is: 262,694.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,502.61 : 485,073.77 = 190,358.37 : x
  2. Step 2: Convert to fraction form
    351,502.61/485,073.77 = 190,358.37/x
  3. Step 3: Cross multiply
    351,502.61x = 485,073.77 × 190,358.37
  4. Step 4: Simplify right side
    351,502.61x = 92,337,851,235.16
  5. Step 5: Solve for x
    x = 92,337,851,235.16/351,502.61
  6. Step 6: Final answer
    x = 262,694.64

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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.