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Finding the Fourth Proportional to 401,133.60, 553,555.44 and 219,841.56

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Solution

The fourth proportional to 401,133.60, 553,555.44 and 219,841.56 is: 303,376.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,133.60 : 553,555.44 = 219,841.56 : x
  2. Step 2: Convert to fraction form
    401,133.60/553,555.44 = 219,841.56/x
  3. Step 3: Cross multiply
    401,133.60x = 553,555.44 × 219,841.56
  4. Step 4: Simplify right side
    401,133.60x = 121,694,491,476.09
  5. Step 5: Solve for x
    x = 121,694,491,476.09/401,133.60
  6. Step 6: Final answer
    x = 303,376.46

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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.