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Finding the Fourth Proportional to 381,810.53, 526,867.81 and 220,676.02

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Solution

The fourth proportional to 381,810.53, 526,867.81 and 220,676.02 is: 304,515.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,810.53 : 526,867.81 = 220,676.02 : x
  2. Step 2: Convert to fraction form
    381,810.53/526,867.81 = 220,676.02/x
  3. Step 3: Cross multiply
    381,810.53x = 526,867.81 × 220,676.02
  4. Step 4: Simplify right side
    381,810.53x = 116,267,089,508.06
  5. Step 5: Solve for x
    x = 116,267,089,508.06/381,810.53
  6. Step 6: Final answer
    x = 304,515.14

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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.