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Finding the Fourth Proportional to 343,319.77, 473,830.31 and 190,391.97

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Solution

The fourth proportional to 343,319.77, 473,830.31 and 190,391.97 is: 262,768.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,319.77 : 473,830.31 = 190,391.97 : x
  2. Step 2: Convert to fraction form
    343,319.77/473,830.31 = 190,391.97/x
  3. Step 3: Cross multiply
    343,319.77x = 473,830.31 × 190,391.97
  4. Step 4: Simplify right side
    343,319.77x = 90,213,485,928.62
  5. Step 5: Solve for x
    x = 90,213,485,928.62/343,319.77
  6. Step 6: Final answer
    x = 262,768.11

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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.