Home / 371,729.40-512,987.85-210,614.28

Finding the Fourth Proportional to 371,729.40, 512,987.85 and 210,614.28

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Solution

The fourth proportional to 371,729.40, 512,987.85 and 210,614.28 is: 290,648.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,729.40 : 512,987.85 = 210,614.28 : x
  2. Step 2: Convert to fraction form
    371,729.40/512,987.85 = 210,614.28/x
  3. Step 3: Cross multiply
    371,729.40x = 512,987.85 × 210,614.28
  4. Step 4: Simplify right side
    371,729.40x = 108,042,566,676.50
  5. Step 5: Solve for x
    x = 108,042,566,676.50/371,729.40
  6. Step 6: Final answer
    x = 290,648.43

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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.