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Finding the Fourth Proportional to 395,036.84, 545,150.50 and 222,991.02

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Solution

The fourth proportional to 395,036.84, 545,150.50 and 222,991.02 is: 307,727.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,036.84 : 545,150.50 = 222,991.02 : x
  2. Step 2: Convert to fraction form
    395,036.84/545,150.50 = 222,991.02/x
  3. Step 3: Cross multiply
    395,036.84x = 545,150.50 × 222,991.02
  4. Step 4: Simplify right side
    395,036.84x = 121,563,666,048.51
  5. Step 5: Solve for x
    x = 121,563,666,048.51/395,036.84
  6. Step 6: Final answer
    x = 307,727.42

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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.