Home / 352,642.27-486,770.50-209,401.26

Finding the Fourth Proportional to 352,642.27, 486,770.50 and 209,401.26

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Solution

The fourth proportional to 352,642.27, 486,770.50 and 209,401.26 is: 289,047.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,642.27 : 486,770.50 = 209,401.26 : x
  2. Step 2: Convert to fraction form
    352,642.27/486,770.50 = 209,401.26/x
  3. Step 3: Cross multiply
    352,642.27x = 486,770.50 × 209,401.26
  4. Step 4: Simplify right side
    352,642.27x = 101,930,356,030.83
  5. Step 5: Solve for x
    x = 101,930,356,030.83/352,642.27
  6. Step 6: Final answer
    x = 289,047.47

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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.