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Finding the Fourth Proportional to 395,572.88, 545,938.44 and 223,498.10

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Solution

The fourth proportional to 395,572.88, 545,938.44 and 223,498.10 is: 308,454.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,572.88 : 545,938.44 = 223,498.10 : x
  2. Step 2: Convert to fraction form
    395,572.88/545,938.44 = 223,498.10/x
  3. Step 3: Cross multiply
    395,572.88x = 545,938.44 × 223,498.10
  4. Step 4: Simplify right side
    395,572.88x = 122,016,204,056.96
  5. Step 5: Solve for x
    x = 122,016,204,056.96/395,572.88
  6. Step 6: Final answer
    x = 308,454.42

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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.