Home / 380,274.31-524,778.70-208,203.43

Finding the Fourth Proportional to 380,274.31, 524,778.70 and 208,203.43

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Solution

The fourth proportional to 380,274.31, 524,778.70 and 208,203.43 is: 287,320.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,274.31 : 524,778.70 = 208,203.43 : x
  2. Step 2: Convert to fraction form
    380,274.31/524,778.70 = 208,203.43/x
  3. Step 3: Cross multiply
    380,274.31x = 524,778.70 × 208,203.43
  4. Step 4: Simplify right side
    380,274.31x = 109,260,725,330.94
  5. Step 5: Solve for x
    x = 109,260,725,330.94/380,274.31
  6. Step 6: Final answer
    x = 287,320.82

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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.