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Finding the Fourth Proportional to 303,076.20, 455,598.45 and 214,940.10

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Solution

The fourth proportional to 303,076.20, 455,598.45 and 214,940.10 is: 323,108.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,076.20 : 455,598.45 = 214,940.10 : x
  2. Step 2: Convert to fraction form
    303,076.20/455,598.45 = 214,940.10/x
  3. Step 3: Cross multiply
    303,076.20x = 455,598.45 × 214,940.10
  4. Step 4: Simplify right side
    303,076.20x = 97,926,376,402.85
  5. Step 5: Solve for x
    x = 97,926,376,402.85/303,076.20
  6. Step 6: Final answer
    x = 323,108.10

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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.