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Finding the Fourth Proportional to 395,035.84, 545,149.12 and 222,990.02

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Solution

The fourth proportional to 395,035.84, 545,149.12 and 222,990.02 is: 307,726.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,035.84 : 545,149.12 = 222,990.02 : x
  2. Step 2: Convert to fraction form
    395,035.84/545,149.12 = 222,990.02/x
  3. Step 3: Cross multiply
    395,035.84x = 545,149.12 × 222,990.02
  4. Step 4: Simplify right side
    395,035.84x = 121,562,813,171.78
  5. Step 5: Solve for x
    x = 121,562,813,171.78/395,035.84
  6. Step 6: Final answer
    x = 307,726.04

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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.