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Finding the Fourth Proportional to 475,157.12, 655,556 and 281,504.32

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Solution

The fourth proportional to 475,157.12, 655,556 and 281,504.32 is: 388,380.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,157.12 : 655,556 = 281,504.32 : x
  2. Step 2: Convert to fraction form
    475,157.12/655,556 = 281,504.32/x
  3. Step 3: Cross multiply
    475,157.12x = 655,556 × 281,504.32
  4. Step 4: Simplify right side
    475,157.12x = 184,541,846,001.92
  5. Step 5: Solve for x
    x = 184,541,846,001.92/475,157.12
  6. Step 6: Final answer
    x = 388,380.68

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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.