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Finding the Fourth Proportional to 400,967.44, 553,334.76 and 219,690.68

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Solution

The fourth proportional to 400,967.44, 553,334.76 and 219,690.68 is: 303,172.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,967.44 : 553,334.76 = 219,690.68 : x
  2. Step 2: Convert to fraction form
    400,967.44/553,334.76 = 219,690.68/x
  3. Step 3: Cross multiply
    400,967.44x = 553,334.76 × 219,690.68
  4. Step 4: Simplify right side
    400,967.44x = 121,562,489,692.04
  5. Step 5: Solve for x
    x = 121,562,489,692.04/400,967.44
  6. Step 6: Final answer
    x = 303,172.97

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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.