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Finding the Fourth Proportional to 458,400.40, 632,560.88 and 254,435.28

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Solution

The fourth proportional to 458,400.40, 632,560.88 and 254,435.28 is: 351,103.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,400.40 : 632,560.88 = 254,435.28 : x
  2. Step 2: Convert to fraction form
    458,400.40/632,560.88 = 254,435.28/x
  3. Step 3: Cross multiply
    458,400.40x = 632,560.88 × 254,435.28
  4. Step 4: Simplify right side
    458,400.40x = 160,945,804,619.85
  5. Step 5: Solve for x
    x = 160,945,804,619.85/458,400.40
  6. Step 6: Final answer
    x = 351,103.11

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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.