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Finding the Fourth Proportional to 262,272.60, 393,408.90 and 84,906.90

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Solution

The fourth proportional to 262,272.60, 393,408.90 and 84,906.90 is: 127,360.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,272.60 : 393,408.90 = 84,906.90 : x
  2. Step 2: Convert to fraction form
    262,272.60/393,408.90 = 84,906.90/x
  3. Step 3: Cross multiply
    262,272.60x = 393,408.90 × 84,906.90
  4. Step 4: Simplify right side
    262,272.60x = 33,403,130,131.41
  5. Step 5: Solve for x
    x = 33,403,130,131.41/262,272.60
  6. Step 6: Final answer
    x = 127,360.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.