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Finding the Fourth Proportional to 329,776.83, 494,330.92 and 130,237.79

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Solution

The fourth proportional to 329,776.83, 494,330.92 and 130,237.79 is: 195,224.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,776.83 : 494,330.92 = 130,237.79 : x
  2. Step 2: Convert to fraction form
    329,776.83/494,330.92 = 130,237.79/x
  3. Step 3: Cross multiply
    329,776.83x = 494,330.92 × 130,237.79
  4. Step 4: Simplify right side
    329,776.83x = 64,380,563,752.22
  5. Step 5: Solve for x
    x = 64,380,563,752.22/329,776.83
  6. Step 6: Final answer
    x = 195,224.64

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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.