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Finding the Fourth Proportional to 253,999.60, 380,970.22 and 67,025.68

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Solution

The fourth proportional to 253,999.60, 380,970.22 and 67,025.68 is: 100,530.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,999.60 : 380,970.22 = 67,025.68 : x
  2. Step 2: Convert to fraction form
    253,999.60/380,970.22 = 67,025.68/x
  3. Step 3: Cross multiply
    253,999.60x = 380,970.22 × 67,025.68
  4. Step 4: Simplify right side
    253,999.60x = 25,534,788,055.25
  5. Step 5: Solve for x
    x = 25,534,788,055.25/253,999.60
  6. Step 6: Final answer
    x = 100,530.82

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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.