Home / 455,303.45-628,321.13-251,350.65

Finding the Fourth Proportional to 455,303.45, 628,321.13 and 251,350.65

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Solution

The fourth proportional to 455,303.45, 628,321.13 and 251,350.65 is: 346,865.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,303.45 : 628,321.13 = 251,350.65 : x
  2. Step 2: Convert to fraction form
    455,303.45/628,321.13 = 251,350.65/x
  3. Step 3: Cross multiply
    455,303.45x = 628,321.13 × 251,350.65
  4. Step 4: Simplify right side
    455,303.45x = 157,928,923,177.48
  5. Step 5: Solve for x
    x = 157,928,923,177.48/455,303.45
  6. Step 6: Final answer
    x = 346,865.21

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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.