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Finding the Fourth Proportional to 213,663.96, 320,395.32 and 124,944.48

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Solution

The fourth proportional to 213,663.96, 320,395.32 and 124,944.48 is: 187,357.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,663.96 : 320,395.32 = 124,944.48 : x
  2. Step 2: Convert to fraction form
    213,663.96/320,395.32 = 124,944.48/x
  3. Step 3: Cross multiply
    213,663.96x = 320,395.32 × 124,944.48
  4. Step 4: Simplify right side
    213,663.96x = 40,031,626,651.83
  5. Step 5: Solve for x
    x = 40,031,626,651.83/213,663.96
  6. Step 6: Final answer
    x = 187,357.88

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1.5x scale

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.