Home / 216,003.12-298,084.50-120,509.85

Finding the Fourth Proportional to 216,003.12, 298,084.50 and 120,509.85

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Solution

The fourth proportional to 216,003.12, 298,084.50 and 120,509.85 is: 166,303.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,003.12 : 298,084.50 = 120,509.85 : x
  2. Step 2: Convert to fraction form
    216,003.12/298,084.50 = 120,509.85/x
  3. Step 3: Cross multiply
    216,003.12x = 298,084.50 × 120,509.85
  4. Step 4: Simplify right side
    216,003.12x = 35,922,118,382.33
  5. Step 5: Solve for x
    x = 35,922,118,382.33/216,003.12
  6. Step 6: Final answer
    x = 166,303.70

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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.