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Finding the Fourth Proportional to 548,089.52, 821,636.02 and 210,915.16

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Solution

The fourth proportional to 548,089.52, 821,636.02 and 210,915.16 is: 316,181.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,089.52 : 821,636.02 = 210,915.16 : x
  2. Step 2: Convert to fraction form
    548,089.52/821,636.02 = 210,915.16/x
  3. Step 3: Cross multiply
    548,089.52x = 821,636.02 × 210,915.16
  4. Step 4: Simplify right side
    548,089.52x = 173,295,492,620.06
  5. Step 5: Solve for x
    x = 173,295,492,620.06/548,089.52
  6. Step 6: Final answer
    x = 316,181.00

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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.