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Finding the Fourth Proportional to 455,341.58, 628,367.98 and 251,392.46

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Solution

The fourth proportional to 455,341.58, 628,367.98 and 251,392.46 is: 346,919.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,341.58 : 628,367.98 = 251,392.46 : x
  2. Step 2: Convert to fraction form
    455,341.58/628,367.98 = 251,392.46/x
  3. Step 3: Cross multiply
    455,341.58x = 628,367.98 × 251,392.46
  4. Step 4: Simplify right side
    455,341.58x = 157,966,967,878.63
  5. Step 5: Solve for x
    x = 157,966,967,878.63/455,341.58
  6. Step 6: Final answer
    x = 346,919.71

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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.