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Finding the Fourth Proportional to 329,739.80, 494,609.70 and 310,056.80

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Solution

The fourth proportional to 329,739.80, 494,609.70 and 310,056.80 is: 465,085.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,739.80 : 494,609.70 = 310,056.80 : x
  2. Step 2: Convert to fraction form
    329,739.80/494,609.70 = 310,056.80/x
  3. Step 3: Cross multiply
    329,739.80x = 494,609.70 × 310,056.80
  4. Step 4: Simplify right side
    329,739.80x = 153,357,100,830.96
  5. Step 5: Solve for x
    x = 153,357,100,830.96/329,739.80
  6. Step 6: Final answer
    x = 465,085.20

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1.5x scale

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.