Home / 216,623.60-324,820.20-91,823.60

Finding the Fourth Proportional to 216,623.60, 324,820.20 and 91,823.60

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Solution

The fourth proportional to 216,623.60, 324,820.20 and 91,823.60 is: 137,686.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,623.60 : 324,820.20 = 91,823.60 : x
  2. Step 2: Convert to fraction form
    216,623.60/324,820.20 = 91,823.60/x
  3. Step 3: Cross multiply
    216,623.60x = 324,820.20 × 91,823.60
  4. Step 4: Simplify right side
    216,623.60x = 29,826,160,116.72
  5. Step 5: Solve for x
    x = 29,826,160,116.72/216,623.60
  6. Step 6: Final answer
    x = 137,686.57

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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.