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Finding the Fourth Proportional to 455,205.50, 628,203.30 and 254,001.50

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Solution

The fourth proportional to 455,205.50, 628,203.30 and 254,001.50 is: 350,533.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,205.50 : 628,203.30 = 254,001.50 : x
  2. Step 2: Convert to fraction form
    455,205.50/628,203.30 = 254,001.50/x
  3. Step 3: Cross multiply
    455,205.50x = 628,203.30 × 254,001.50
  4. Step 4: Simplify right side
    455,205.50x = 159,564,580,504.95
  5. Step 5: Solve for x
    x = 159,564,580,504.95/455,205.50
  6. Step 6: Final answer
    x = 350,533.07

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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.