Home / 210,537.28-290,540.72-115,044.80

Finding the Fourth Proportional to 210,537.28, 290,540.72 and 115,044.80

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Solution

The fourth proportional to 210,537.28, 290,540.72 and 115,044.80 is: 158,761.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,537.28 : 290,540.72 = 115,044.80 : x
  2. Step 2: Convert to fraction form
    210,537.28/290,540.72 = 115,044.80/x
  3. Step 3: Cross multiply
    210,537.28x = 290,540.72 × 115,044.80
  4. Step 4: Simplify right side
    210,537.28x = 33,425,199,024.26
  5. Step 5: Solve for x
    x = 33,425,199,024.26/210,537.28
  6. Step 6: Final answer
    x = 158,761.43

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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.