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Finding the Fourth Proportional to 252,405.54, 378,611.61 and 83,925.87

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Solution

The fourth proportional to 252,405.54, 378,611.61 and 83,925.87 is: 125,889.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,405.54 : 378,611.61 = 83,925.87 : x
  2. Step 2: Convert to fraction form
    252,405.54/378,611.61 = 83,925.87/x
  3. Step 3: Cross multiply
    252,405.54x = 378,611.61 × 83,925.87
  4. Step 4: Simplify right side
    252,405.54x = 31,775,307,026.84
  5. Step 5: Solve for x
    x = 31,775,307,026.84/252,405.54
  6. Step 6: Final answer
    x = 125,889.90

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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.