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Finding the Fourth Proportional to 306,003.70, 459,005.55 and 231,354.10

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Solution

The fourth proportional to 306,003.70, 459,005.55 and 231,354.10 is: 347,031.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,003.70 : 459,005.55 = 231,354.10 : x
  2. Step 2: Convert to fraction form
    306,003.70/459,005.55 = 231,354.10/x
  3. Step 3: Cross multiply
    306,003.70x = 459,005.55 × 231,354.10
  4. Step 4: Simplify right side
    306,003.70x = 106,192,815,915.26
  5. Step 5: Solve for x
    x = 106,192,815,915.26/306,003.70
  6. Step 6: Final answer
    x = 347,031.15

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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.