Home / 215,971.29-298,037.48-120,479.58

Finding the Fourth Proportional to 215,971.29, 298,037.48 and 120,479.58

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Solution

The fourth proportional to 215,971.29, 298,037.48 and 120,479.58 is: 166,260.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,971.29 : 298,037.48 = 120,479.58 : x
  2. Step 2: Convert to fraction form
    215,971.29/298,037.48 = 120,479.58/x
  3. Step 3: Cross multiply
    215,971.29x = 298,037.48 × 120,479.58
  4. Step 4: Simplify right side
    215,971.29x = 35,907,429,812.26
  5. Step 5: Solve for x
    x = 35,907,429,812.26/215,971.29
  6. Step 6: Final answer
    x = 166,260.20

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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.