Home / 216,335.18-324,415.10-89,889.50

Finding the Fourth Proportional to 216,335.18, 324,415.10 and 89,889.50

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Solution

The fourth proportional to 216,335.18, 324,415.10 and 89,889.50 is: 134,797.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,335.18 : 324,415.10 = 89,889.50 : x
  2. Step 2: Convert to fraction form
    216,335.18/324,415.10 = 89,889.50/x
  3. Step 3: Cross multiply
    216,335.18x = 324,415.10 × 89,889.50
  4. Step 4: Simplify right side
    216,335.18x = 29,161,511,131.45
  5. Step 5: Solve for x
    x = 29,161,511,131.45/216,335.18
  6. Step 6: Final answer
    x = 134,797.82

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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.