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Finding the Fourth Proportional to 395,608.32, 545,974.56 and 225,897.12

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Solution

The fourth proportional to 395,608.32, 545,974.56 and 225,897.12 is: 311,758.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,608.32 : 545,974.56 = 225,897.12 : x
  2. Step 2: Convert to fraction form
    395,608.32/545,974.56 = 225,897.12/x
  3. Step 3: Cross multiply
    395,608.32x = 545,974.56 × 225,897.12
  4. Step 4: Simplify right side
    395,608.32x = 123,334,080,697.27
  5. Step 5: Solve for x
    x = 123,334,080,697.27/395,608.32
  6. Step 6: Final answer
    x = 311,758.06

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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.