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Finding the Fourth Proportional to 275,807.82, 380,659.05 and 257,797.83

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Solution

The fourth proportional to 275,807.82, 380,659.05 and 257,797.83 is: 355,802.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,807.82 : 380,659.05 = 257,797.83 : x
  2. Step 2: Convert to fraction form
    275,807.82/380,659.05 = 257,797.83/x
  3. Step 3: Cross multiply
    275,807.82x = 380,659.05 × 257,797.83
  4. Step 4: Simplify right side
    275,807.82x = 98,133,077,059.86
  5. Step 5: Solve for x
    x = 98,133,077,059.86/275,807.82
  6. Step 6: Final answer
    x = 355,802.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.