Home / 352,774.23-486,899.28-209,506.59

Finding the Fourth Proportional to 352,774.23, 486,899.28 and 209,506.59

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Solution

The fourth proportional to 352,774.23, 486,899.28 and 209,506.59 is: 289,161.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,774.23 : 486,899.28 = 209,506.59 : x
  2. Step 2: Convert to fraction form
    352,774.23/486,899.28 = 209,506.59/x
  3. Step 3: Cross multiply
    352,774.23x = 486,899.28 × 209,506.59
  4. Step 4: Simplify right side
    352,774.23x = 102,008,607,826.26
  5. Step 5: Solve for x
    x = 102,008,607,826.26/352,774.23
  6. Step 6: Final answer
    x = 289,161.17

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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.