Home / 455,271.12-628,308.90-251,361.27

Finding the Fourth Proportional to 455,271.12, 628,308.90 and 251,361.27

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Solution

The fourth proportional to 455,271.12, 628,308.90 and 251,361.27 is: 346,897.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,271.12 : 628,308.90 = 251,361.27 : x
  2. Step 2: Convert to fraction form
    455,271.12/628,308.90 = 251,361.27/x
  3. Step 3: Cross multiply
    455,271.12x = 628,308.90 × 251,361.27
  4. Step 4: Simplify right side
    455,271.12x = 157,932,523,056.30
  5. Step 5: Solve for x
    x = 157,932,523,056.30/455,271.12
  6. Step 6: Final answer
    x = 346,897.74

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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.