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Finding the Fourth Proportional to 455,228.00, 628,214.76 and 251,279.01

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Solution

The fourth proportional to 455,228.00, 628,214.76 and 251,279.01 is: 346,765.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,228.00 : 628,214.76 = 251,279.01 : x
  2. Step 2: Convert to fraction form
    455,228.00/628,214.76 = 251,279.01/x
  3. Step 3: Cross multiply
    455,228.00x = 628,214.76 × 251,279.01
  4. Step 4: Simplify right side
    455,228.00x = 157,857,183,666.91
  5. Step 5: Solve for x
    x = 157,857,183,666.91/455,228.00
  6. Step 6: Final answer
    x = 346,765.10

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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.