Home / 216,218.06-298,377.78-120,726.08

Finding the Fourth Proportional to 216,218.06, 298,377.78 and 120,726.08

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Solution

The fourth proportional to 216,218.06, 298,377.78 and 120,726.08 is: 166,600.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,218.06 : 298,377.78 = 120,726.08 : x
  2. Step 2: Convert to fraction form
    216,218.06/298,377.78 = 120,726.08/x
  3. Step 3: Cross multiply
    216,218.06x = 298,377.78 × 120,726.08
  4. Step 4: Simplify right side
    216,218.06x = 36,021,979,738.50
  5. Step 5: Solve for x
    x = 36,021,979,738.50/216,218.06
  6. Step 6: Final answer
    x = 166,600.24

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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.