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Finding the Fourth Proportional to 401,894.06, 554,615.00 and 220,624.56

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Solution

The fourth proportional to 401,894.06, 554,615.00 and 220,624.56 is: 304,462.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,894.06 : 554,615.00 = 220,624.56 : x
  2. Step 2: Convert to fraction form
    401,894.06/554,615.00 = 220,624.56/x
  3. Step 3: Cross multiply
    401,894.06x = 554,615.00 × 220,624.56
  4. Step 4: Simplify right side
    401,894.06x = 122,361,690,068.62
  5. Step 5: Solve for x
    x = 122,361,690,068.62/401,894.06
  6. Step 6: Final answer
    x = 304,462.55

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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.