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Finding the Fourth Proportional to 401,369.77, 553,896.53 and 220,098.25

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Solution

The fourth proportional to 401,369.77, 553,896.53 and 220,098.25 is: 303,739.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,369.77 : 553,896.53 = 220,098.25 : x
  2. Step 2: Convert to fraction form
    401,369.77/553,896.53 = 220,098.25/x
  3. Step 3: Cross multiply
    401,369.77x = 553,896.53 × 220,098.25
  4. Step 4: Simplify right side
    401,369.77x = 121,911,655,833.58
  5. Step 5: Solve for x
    x = 121,911,655,833.58/401,369.77
  6. Step 6: Final answer
    x = 303,739.01

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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.