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Finding the Fourth Proportional to 450,153.76, 621,189 and 246,165

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Solution

The fourth proportional to 450,153.76, 621,189 and 246,165 is: 339,695.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,153.76 : 621,189 = 246,165 : x
  2. Step 2: Convert to fraction form
    450,153.76/621,189 = 246,165/x
  3. Step 3: Cross multiply
    450,153.76x = 621,189 × 246,165
  4. Step 4: Simplify right side
    450,153.76x = 152,914,990,185
  5. Step 5: Solve for x
    x = 152,914,990,185/450,153.76
  6. Step 6: Final answer
    x = 339,695.02

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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.