Home / 215,979.48-298,048.14-120,496.68

Finding the Fourth Proportional to 215,979.48, 298,048.14 and 120,496.68

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Solution

The fourth proportional to 215,979.48, 298,048.14 and 120,496.68 is: 166,283.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,979.48 : 298,048.14 = 120,496.68 : x
  2. Step 2: Convert to fraction form
    215,979.48/298,048.14 = 120,496.68/x
  3. Step 3: Cross multiply
    215,979.48x = 298,048.14 × 120,496.68
  4. Step 4: Simplify right side
    215,979.48x = 35,913,811,350.18
  5. Step 5: Solve for x
    x = 35,913,811,350.18/215,979.48
  6. Step 6: Final answer
    x = 166,283.44

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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.