Home / 252,627.72-378,740.34-145,890.54

Finding the Fourth Proportional to 252,627.72, 378,740.34 and 145,890.54

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Solution

The fourth proportional to 252,627.72, 378,740.34 and 145,890.54 is: 218,719.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,627.72 : 378,740.34 = 145,890.54 : x
  2. Step 2: Convert to fraction form
    252,627.72/378,740.34 = 145,890.54/x
  3. Step 3: Cross multiply
    252,627.72x = 378,740.34 × 145,890.54
  4. Step 4: Simplify right side
    252,627.72x = 55,254,632,722.38
  5. Step 5: Solve for x
    x = 55,254,632,722.38/252,627.72
  6. Step 6: Final answer
    x = 218,719.60

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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.