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Finding the Fourth Proportional to 403,994.66, 557,512.50 and 222,709.68

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Solution

The fourth proportional to 403,994.66, 557,512.50 and 222,709.68 is: 307,339.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,994.66 : 557,512.50 = 222,709.68 : x
  2. Step 2: Convert to fraction form
    403,994.66/557,512.50 = 222,709.68/x
  3. Step 3: Cross multiply
    403,994.66x = 557,512.50 × 222,709.68
  4. Step 4: Simplify right side
    403,994.66x = 124,163,430,471
  5. Step 5: Solve for x
    x = 124,163,430,471/403,994.66
  6. Step 6: Final answer
    x = 307,339.29

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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.