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Finding the Fourth Proportional to 351,513.69, 485,089.52 and 190,368.27

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Solution

The fourth proportional to 351,513.69, 485,089.52 and 190,368.27 is: 262,708.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,513.69 : 485,089.52 = 190,368.27 : x
  2. Step 2: Convert to fraction form
    351,513.69/485,089.52 = 190,368.27/x
  3. Step 3: Cross multiply
    351,513.69x = 485,089.52 × 190,368.27
  4. Step 4: Simplify right side
    351,513.69x = 92,345,651,765.69
  5. Step 5: Solve for x
    x = 92,345,651,765.69/351,513.69
  6. Step 6: Final answer
    x = 262,708.55

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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.