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Finding the Fourth Proportional to 455,750.24, 628,881.71 and 251,789.00

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Solution

The fourth proportional to 455,750.24, 628,881.71 and 251,789.00 is: 347,439.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,750.24 : 628,881.71 = 251,789.00 : x
  2. Step 2: Convert to fraction form
    455,750.24/628,881.71 = 251,789.00/x
  3. Step 3: Cross multiply
    455,750.24x = 628,881.71 × 251,789.00
  4. Step 4: Simplify right side
    455,750.24x = 158,345,492,475.84
  5. Step 5: Solve for x
    x = 158,345,492,475.84/455,750.24
  6. Step 6: Final answer
    x = 347,439.19

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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.