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Finding the Fourth Proportional to 548,052.52, 821,580.56 and 210,878.12

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Solution

The fourth proportional to 548,052.52, 821,580.56 and 210,878.12 is: 316,125.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,052.52 : 821,580.56 = 210,878.12 : x
  2. Step 2: Convert to fraction form
    548,052.52/821,580.56 = 210,878.12/x
  3. Step 3: Cross multiply
    548,052.52x = 821,580.56 × 210,878.12
  4. Step 4: Simplify right side
    548,052.52x = 173,253,363,921.35
  5. Step 5: Solve for x
    x = 173,253,363,921.35/548,052.52
  6. Step 6: Final answer
    x = 316,125.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.