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Finding the Fourth Proportional to 401,464.71, 554,026.86 and 220,164.68

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Solution

The fourth proportional to 401,464.71, 554,026.86 and 220,164.68 is: 303,830.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,464.71 : 554,026.86 = 220,164.68 : x
  2. Step 2: Convert to fraction form
    401,464.71/554,026.86 = 220,164.68/x
  3. Step 3: Cross multiply
    401,464.71x = 554,026.86 × 220,164.68
  4. Step 4: Simplify right side
    401,464.71x = 121,977,143,573.17
  5. Step 5: Solve for x
    x = 121,977,143,573.17/401,464.71
  6. Step 6: Final answer
    x = 303,830.30

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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.