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Finding the Fourth Proportional to 449,259.21, 620,002.96 and 245,329.16

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Solution

The fourth proportional to 449,259.21, 620,002.96 and 245,329.16 is: 338,568.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,259.21 : 620,002.96 = 245,329.16 : x
  2. Step 2: Convert to fraction form
    449,259.21/620,002.96 = 245,329.16/x
  3. Step 3: Cross multiply
    449,259.21x = 620,002.96 × 245,329.16
  4. Step 4: Simplify right side
    449,259.21x = 152,104,801,660.98
  5. Step 5: Solve for x
    x = 152,104,801,660.98/449,259.21
  6. Step 6: Final answer
    x = 338,568.02

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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.