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Finding the Fourth Proportional to 401,360.52, 553,883.94 and 220,089

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Solution

The fourth proportional to 401,360.52, 553,883.94 and 220,089 is: 303,726.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,360.52 : 553,883.94 = 220,089 : x
  2. Step 2: Convert to fraction form
    401,360.52/553,883.94 = 220,089/x
  3. Step 3: Cross multiply
    401,360.52x = 553,883.94 × 220,089
  4. Step 4: Simplify right side
    401,360.52x = 121,903,762,470.66
  5. Step 5: Solve for x
    x = 121,903,762,470.66/401,360.52
  6. Step 6: Final answer
    x = 303,726.34

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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.