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Finding the Fourth Proportional to 382,958.52, 528,462.05 and 210,842.97

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Solution

The fourth proportional to 382,958.52, 528,462.05 and 210,842.97 is: 290,951.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,958.52 : 528,462.05 = 210,842.97 : x
  2. Step 2: Convert to fraction form
    382,958.52/528,462.05 = 210,842.97/x
  3. Step 3: Cross multiply
    382,958.52x = 528,462.05 × 210,842.97
  4. Step 4: Simplify right side
    382,958.52x = 111,422,508,154.29
  5. Step 5: Solve for x
    x = 111,422,508,154.29/382,958.52
  6. Step 6: Final answer
    x = 290,951.90

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1.5x scale

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.