Home / 209,726.72-289,171.32-171,344.06

Finding the Fourth Proportional to 209,726.72, 289,171.32 and 171,344.06

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Solution

The fourth proportional to 209,726.72, 289,171.32 and 171,344.06 is: 236,249.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,726.72 : 289,171.32 = 171,344.06 : x
  2. Step 2: Convert to fraction form
    209,726.72/289,171.32 = 171,344.06/x
  3. Step 3: Cross multiply
    209,726.72x = 289,171.32 × 171,344.06
  4. Step 4: Simplify right side
    209,726.72x = 49,547,788,004.36
  5. Step 5: Solve for x
    x = 49,547,788,004.36/209,726.72
  6. Step 6: Final answer
    x = 236,249.29

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1.5x scale

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.