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Finding the Fourth Proportional to 252,028.60, 378,034.80 and 83,556.70

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Solution

The fourth proportional to 252,028.60, 378,034.80 and 83,556.70 is: 125,332.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,028.60 : 378,034.80 = 83,556.70 : x
  2. Step 2: Convert to fraction form
    252,028.60/378,034.80 = 83,556.70/x
  3. Step 3: Cross multiply
    252,028.60x = 378,034.80 × 83,556.70
  4. Step 4: Simplify right side
    252,028.60x = 31,587,340,373.16
  5. Step 5: Solve for x
    x = 31,587,340,373.16/252,028.60
  6. Step 6: Final answer
    x = 125,332.36

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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.