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Finding the Fourth Proportional to 456,271.68, 629,556 and 255,060.80

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Solution

The fourth proportional to 456,271.68, 629,556 and 255,060.80 is: 351,928.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,271.68 : 629,556 = 255,060.80 : x
  2. Step 2: Convert to fraction form
    456,271.68/629,556 = 255,060.80/x
  3. Step 3: Cross multiply
    456,271.68x = 629,556 × 255,060.80
  4. Step 4: Simplify right side
    456,271.68x = 160,575,057,004.80
  5. Step 5: Solve for x
    x = 160,575,057,004.80/456,271.68
  6. Step 6: Final answer
    x = 351,928.61

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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.