Home / 380,273.40-524,781.18-210,503.88

Finding the Fourth Proportional to 380,273.40, 524,781.18 and 210,503.88

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Solution

The fourth proportional to 380,273.40, 524,781.18 and 210,503.88 is: 290,497.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,273.40 : 524,781.18 = 210,503.88 : x
  2. Step 2: Convert to fraction form
    380,273.40/524,781.18 = 210,503.88/x
  3. Step 3: Cross multiply
    380,273.40x = 524,781.18 × 210,503.88
  4. Step 4: Simplify right side
    380,273.40x = 110,468,474,540.98
  5. Step 5: Solve for x
    x = 110,468,474,540.98/380,273.40
  6. Step 6: Final answer
    x = 290,497.51

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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.