Home / 378,983.52-522,994.02-209,214

Finding the Fourth Proportional to 378,983.52, 522,994.02 and 209,214

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Solution

The fourth proportional to 378,983.52, 522,994.02 and 209,214 is: 288,713.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,983.52 : 522,994.02 = 209,214 : x
  2. Step 2: Convert to fraction form
    378,983.52/522,994.02 = 209,214/x
  3. Step 3: Cross multiply
    378,983.52x = 522,994.02 × 209,214
  4. Step 4: Simplify right side
    378,983.52x = 109,417,670,900.28
  5. Step 5: Solve for x
    x = 109,417,670,900.28/378,983.52
  6. Step 6: Final answer
    x = 288,713.53

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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.