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Finding the Fourth Proportional to 343,255.20, 473,692.32 and 209,119.20

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Solution

The fourth proportional to 343,255.20, 473,692.32 and 209,119.20 is: 288,584.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,255.20 : 473,692.32 = 209,119.20 : x
  2. Step 2: Convert to fraction form
    343,255.20/473,692.32 = 209,119.20/x
  3. Step 3: Cross multiply
    343,255.20x = 473,692.32 × 209,119.20
  4. Step 4: Simplify right side
    343,255.20x = 99,058,159,004.54
  5. Step 5: Solve for x
    x = 99,058,159,004.54/343,255.20
  6. Step 6: Final answer
    x = 288,584.58

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.