Home / 216,439.02-298,685.37-120,945.72

Finding the Fourth Proportional to 216,439.02, 298,685.37 and 120,945.72

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Solution

The fourth proportional to 216,439.02, 298,685.37 and 120,945.72 is: 166,904.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,439.02 : 298,685.37 = 120,945.72 : x
  2. Step 2: Convert to fraction form
    216,439.02/298,685.37 = 120,945.72/x
  3. Step 3: Cross multiply
    216,439.02x = 298,685.37 × 120,945.72
  4. Step 4: Simplify right side
    216,439.02x = 36,124,718,701.73
  5. Step 5: Solve for x
    x = 36,124,718,701.73/216,439.02
  6. Step 6: Final answer
    x = 166,904.83

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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.