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Finding the Fourth Proportional to 216,293.66, 298,441.89 and 120,785.66

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Solution

The fourth proportional to 216,293.66, 298,441.89 and 120,785.66 is: 166,660.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,293.66 : 298,441.89 = 120,785.66 : x
  2. Step 2: Convert to fraction form
    216,293.66/298,441.89 = 120,785.66/x
  3. Step 3: Cross multiply
    216,293.66x = 298,441.89 × 120,785.66
  4. Step 4: Simplify right side
    216,293.66x = 36,047,500,655.30
  5. Step 5: Solve for x
    x = 36,047,500,655.30/216,293.66
  6. Step 6: Final answer
    x = 166,660.00

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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.