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Finding the Fourth Proportional to 329,749.80, 494,624.70 and 130,003.80

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Solution

The fourth proportional to 329,749.80, 494,624.70 and 130,003.80 is: 195,005.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,749.80 : 494,624.70 = 130,003.80 : x
  2. Step 2: Convert to fraction form
    329,749.80/494,624.70 = 130,003.80/x
  3. Step 3: Cross multiply
    329,749.80x = 494,624.70 × 130,003.80
  4. Step 4: Simplify right side
    329,749.80x = 64,303,090,573.86
  5. Step 5: Solve for x
    x = 64,303,090,573.86/329,749.80
  6. Step 6: Final answer
    x = 195,005.70

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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.