Home / 371,722.98-513,003.12-210,579.36

Finding the Fourth Proportional to 371,722.98, 513,003.12 and 210,579.36

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Solution

The fourth proportional to 371,722.98, 513,003.12 and 210,579.36 is: 290,613.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,722.98 : 513,003.12 = 210,579.36 : x
  2. Step 2: Convert to fraction form
    371,722.98/513,003.12 = 210,579.36/x
  3. Step 3: Cross multiply
    371,722.98x = 513,003.12 × 210,579.36
  4. Step 4: Simplify right side
    371,722.98x = 108,027,868,687.60
  5. Step 5: Solve for x
    x = 108,027,868,687.60/371,722.98
  6. Step 6: Final answer
    x = 290,613.91

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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.