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Finding the Fourth Proportional to 343,208.25, 473,627.52 and 209,072.25

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Solution

The fourth proportional to 343,208.25, 473,627.52 and 209,072.25 is: 288,519.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,208.25 : 473,627.52 = 209,072.25 : x
  2. Step 2: Convert to fraction form
    343,208.25/473,627.52 = 209,072.25/x
  3. Step 3: Cross multiply
    343,208.25x = 473,627.52 × 209,072.25
  4. Step 4: Simplify right side
    343,208.25x = 99,022,371,268.32
  5. Step 5: Solve for x
    x = 99,022,371,268.32/343,208.25
  6. Step 6: Final answer
    x = 288,519.79

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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.