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Finding the Fourth Proportional to 270,607.12, 405,863.16 and 83,620.24

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Solution

The fourth proportional to 270,607.12, 405,863.16 and 83,620.24 is: 125,415.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,607.12 : 405,863.16 = 83,620.24 : x
  2. Step 2: Convert to fraction form
    270,607.12/405,863.16 = 83,620.24/x
  3. Step 3: Cross multiply
    270,607.12x = 405,863.16 × 83,620.24
  4. Step 4: Simplify right side
    270,607.12x = 33,938,374,846.36
  5. Step 5: Solve for x
    x = 33,938,374,846.36/270,607.12
  6. Step 6: Final answer
    x = 125,415.68

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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.