Home / 380,810.31-525,524.71-208,724.85

Finding the Fourth Proportional to 380,810.31, 525,524.71 and 208,724.85

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Solution

The fourth proportional to 380,810.31, 525,524.71 and 208,724.85 is: 288,043.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,810.31 : 525,524.71 = 208,724.85 : x
  2. Step 2: Convert to fraction form
    380,810.31/525,524.71 = 208,724.85/x
  3. Step 3: Cross multiply
    380,810.31x = 525,524.71 × 208,724.85
  4. Step 4: Simplify right side
    380,810.31x = 109,690,066,135.59
  5. Step 5: Solve for x
    x = 109,690,066,135.59/380,810.31
  6. Step 6: Final answer
    x = 288,043.84

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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.