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Finding the Fourth Proportional to 449,353.59, 620,112.15 and 255,751.80

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Solution

The fourth proportional to 449,353.59, 620,112.15 and 255,751.80 is: 352,939.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,353.59 : 620,112.15 = 255,751.80 : x
  2. Step 2: Convert to fraction form
    449,353.59/620,112.15 = 255,751.80/x
  3. Step 3: Cross multiply
    449,353.59x = 620,112.15 × 255,751.80
  4. Step 4: Simplify right side
    449,353.59x = 158,594,798,564.37
  5. Step 5: Solve for x
    x = 158,594,798,564.37/449,353.59
  6. Step 6: Final answer
    x = 352,939.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.