Home / 252,405.47-378,611.50-83,925.79

Finding the Fourth Proportional to 252,405.47, 378,611.50 and 83,925.79

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Solution

The fourth proportional to 252,405.47, 378,611.50 and 83,925.79 is: 125,889.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,405.47 : 378,611.50 = 83,925.79 : x
  2. Step 2: Convert to fraction form
    252,405.47/378,611.50 = 83,925.79/x
  3. Step 3: Cross multiply
    252,405.47x = 378,611.50 × 83,925.79
  4. Step 4: Simplify right side
    252,405.47x = 31,775,268,241.60
  5. Step 5: Solve for x
    x = 31,775,268,241.60/252,405.47
  6. Step 6: Final answer
    x = 125,889.78

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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.