Home / 380,770.62-525,470.22-208,677.18

Finding the Fourth Proportional to 380,770.62, 525,470.22 and 208,677.18

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Solution

The fourth proportional to 380,770.62, 525,470.22 and 208,677.18 is: 287,978.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,770.62 : 525,470.22 = 208,677.18 : x
  2. Step 2: Convert to fraction form
    380,770.62/525,470.22 = 208,677.18/x
  3. Step 3: Cross multiply
    380,770.62x = 525,470.22 × 208,677.18
  4. Step 4: Simplify right side
    380,770.62x = 109,653,643,683.58
  5. Step 5: Solve for x
    x = 109,653,643,683.58/380,770.62
  6. Step 6: Final answer
    x = 287,978.22

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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.