Home / 372,301.72-558,540.06-161,999.80

Finding the Fourth Proportional to 372,301.72, 558,540.06 and 161,999.80

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Solution

The fourth proportional to 372,301.72, 558,540.06 and 161,999.80 is: 243,037.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,301.72 : 558,540.06 = 161,999.80 : x
  2. Step 2: Convert to fraction form
    372,301.72/558,540.06 = 161,999.80/x
  3. Step 3: Cross multiply
    372,301.72x = 558,540.06 × 161,999.80
  4. Step 4: Simplify right side
    372,301.72x = 90,483,378,011.99
  5. Step 5: Solve for x
    x = 90,483,378,011.99/372,301.72
  6. Step 6: Final answer
    x = 243,037.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.