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Finding the Fourth Proportional to 368,680.20, 553,020.06 and 210,797.88

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Solution

The fourth proportional to 368,680.20, 553,020.06 and 210,797.88 is: 316,196.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,680.20 : 553,020.06 = 210,797.88 : x
  2. Step 2: Convert to fraction form
    368,680.20/553,020.06 = 210,797.88/x
  3. Step 3: Cross multiply
    368,680.20x = 553,020.06 × 210,797.88
  4. Step 4: Simplify right side
    368,680.20x = 116,575,456,245.47
  5. Step 5: Solve for x
    x = 116,575,456,245.47/368,680.20
  6. Step 6: Final answer
    x = 316,196.68

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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.