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Finding the Fourth Proportional to 455,960.40, 629,205.80 and 252,000.80

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Solution

The fourth proportional to 455,960.40, 629,205.80 and 252,000.80 is: 347,750.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,960.40 : 629,205.80 = 252,000.80 : x
  2. Step 2: Convert to fraction form
    455,960.40/629,205.80 = 252,000.80/x
  3. Step 3: Cross multiply
    455,960.40x = 629,205.80 × 252,000.80
  4. Step 4: Simplify right side
    455,960.40x = 158,560,364,964.64
  5. Step 5: Solve for x
    x = 158,560,364,964.64/455,960.40
  6. Step 6: Final answer
    x = 347,750.30

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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.