Home / 380,732.24-525,414.16-210,970

Finding the Fourth Proportional to 380,732.24, 525,414.16 and 210,970

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Solution

The fourth proportional to 380,732.24, 525,414.16 and 210,970 is: 291,140.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,732.24 : 525,414.16 = 210,970 : x
  2. Step 2: Convert to fraction form
    380,732.24/525,414.16 = 210,970/x
  3. Step 3: Cross multiply
    380,732.24x = 525,414.16 × 210,970
  4. Step 4: Simplify right side
    380,732.24x = 110,846,625,335.20
  5. Step 5: Solve for x
    x = 110,846,625,335.20/380,732.24
  6. Step 6: Final answer
    x = 291,140.63

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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.