Home / 345,784.68-515,972.61-273,892.68

Finding the Fourth Proportional to 345,784.68, 515,972.61 and 273,892.68

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Solution

The fourth proportional to 345,784.68, 515,972.61 and 273,892.68 is: 408,696.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,784.68 : 515,972.61 = 273,892.68 : x
  2. Step 2: Convert to fraction form
    345,784.68/515,972.61 = 273,892.68/x
  3. Step 3: Cross multiply
    345,784.68x = 515,972.61 × 273,892.68
  4. Step 4: Simplify right side
    345,784.68x = 141,321,120,959.50
  5. Step 5: Solve for x
    x = 141,321,120,959.50/345,784.68
  6. Step 6: Final answer
    x = 408,696.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.