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Finding the Fourth Proportional to 210,842.88, 290,960.76 and 115,348.44

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Solution

The fourth proportional to 210,842.88, 290,960.76 and 115,348.44 is: 159,179.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,842.88 : 290,960.76 = 115,348.44 : x
  2. Step 2: Convert to fraction form
    210,842.88/290,960.76 = 115,348.44/x
  3. Step 3: Cross multiply
    210,842.88x = 290,960.76 × 115,348.44
  4. Step 4: Simplify right side
    210,842.88x = 33,561,869,767.21
  5. Step 5: Solve for x
    x = 33,561,869,767.21/210,842.88
  6. Step 6: Final answer
    x = 159,179.53

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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.