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Finding the Fourth Proportional to 450,090.92, 621,182.21 and 295,172.49

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Solution

The fourth proportional to 450,090.92, 621,182.21 and 295,172.49 is: 407,375.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,090.92 : 621,182.21 = 295,172.49 : x
  2. Step 2: Convert to fraction form
    450,090.92/621,182.21 = 295,172.49/x
  3. Step 3: Cross multiply
    450,090.92x = 621,182.21 × 295,172.49
  4. Step 4: Simplify right side
    450,090.92x = 183,355,899,669.40
  5. Step 5: Solve for x
    x = 183,355,899,669.40/450,090.92
  6. Step 6: Final answer
    x = 407,375.25

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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.