Home / 380,729.72-525,399.16-210,962.36

Finding the Fourth Proportional to 380,729.72, 525,399.16 and 210,962.36

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Solution

The fourth proportional to 380,729.72, 525,399.16 and 210,962.36 is: 291,123.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,729.72 : 525,399.16 = 210,962.36 : x
  2. Step 2: Convert to fraction form
    380,729.72/525,399.16 = 210,962.36/x
  3. Step 3: Cross multiply
    380,729.72x = 525,399.16 × 210,962.36
  4. Step 4: Simplify right side
    380,729.72x = 110,839,446,735.62
  5. Step 5: Solve for x
    x = 110,839,446,735.62/380,729.72
  6. Step 6: Final answer
    x = 291,123.71

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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.