Home / 352,971.24-487,171.17-209,703.66

Finding the Fourth Proportional to 352,971.24, 487,171.17 and 209,703.66

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Solution

The fourth proportional to 352,971.24, 487,171.17 and 209,703.66 is: 289,433.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,971.24 : 487,171.17 = 209,703.66 : x
  2. Step 2: Convert to fraction form
    352,971.24/487,171.17 = 209,703.66/x
  3. Step 3: Cross multiply
    352,971.24x = 487,171.17 × 209,703.66
  4. Step 4: Simplify right side
    352,971.24x = 102,161,577,395.48
  5. Step 5: Solve for x
    x = 102,161,577,395.48/352,971.24
  6. Step 6: Final answer
    x = 289,433.15

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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.