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Finding the Fourth Proportional to 329,800.85, 494,553.45 and 130,018.40

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Solution

The fourth proportional to 329,800.85, 494,553.45 and 130,018.40 is: 194,969.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,800.85 : 494,553.45 = 130,018.40 : x
  2. Step 2: Convert to fraction form
    329,800.85/494,553.45 = 130,018.40/x
  3. Step 3: Cross multiply
    329,800.85x = 494,553.45 × 130,018.40
  4. Step 4: Simplify right side
    329,800.85x = 64,301,048,283.48
  5. Step 5: Solve for x
    x = 64,301,048,283.48/329,800.85
  6. Step 6: Final answer
    x = 194,969.32

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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.