Home / 216,444.15-324,782.46-90,171.63

Finding the Fourth Proportional to 216,444.15, 324,782.46 and 90,171.63

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Solution

The fourth proportional to 216,444.15, 324,782.46 and 90,171.63 is: 135,305.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,444.15 : 324,782.46 = 90,171.63 : x
  2. Step 2: Convert to fraction form
    216,444.15/324,782.46 = 90,171.63/x
  3. Step 3: Cross multiply
    216,444.15x = 324,782.46 × 90,171.63
  4. Step 4: Simplify right side
    216,444.15x = 29,286,163,813.61
  5. Step 5: Solve for x
    x = 29,286,163,813.61/216,444.15
  6. Step 6: Final answer
    x = 135,305.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.