Home / 347,212.72-479,167.20-203,971.51

Finding the Fourth Proportional to 347,212.72, 479,167.20 and 203,971.51

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Solution

The fourth proportional to 347,212.72, 479,167.20 and 203,971.51 is: 281,488.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,212.72 : 479,167.20 = 203,971.51 : x
  2. Step 2: Convert to fraction form
    347,212.72/479,167.20 = 203,971.51/x
  3. Step 3: Cross multiply
    347,212.72x = 479,167.20 × 203,971.51
  4. Step 4: Simplify right side
    347,212.72x = 97,736,457,326.47
  5. Step 5: Solve for x
    x = 97,736,457,326.47/347,212.72
  6. Step 6: Final answer
    x = 281,488.70

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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.