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Finding the Fourth Proportional to 455,975.76, 629,227 and 252,016.16

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Solution

The fourth proportional to 455,975.76, 629,227 and 252,016.16 is: 347,771.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,975.76 : 629,227 = 252,016.16 : x
  2. Step 2: Convert to fraction form
    455,975.76/629,227 = 252,016.16/x
  3. Step 3: Cross multiply
    455,975.76x = 629,227 × 252,016.16
  4. Step 4: Simplify right side
    455,975.76x = 158,575,372,308.32
  5. Step 5: Solve for x
    x = 158,575,372,308.32/455,975.76
  6. Step 6: Final answer
    x = 347,771.50

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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.