Home / 216,343.31-324,515.18-56,419.12

Finding the Fourth Proportional to 216,343.31, 324,515.18 and 56,419.12

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Solution

The fourth proportional to 216,343.31, 324,515.18 and 56,419.12 is: 84,628.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,343.31 : 324,515.18 = 56,419.12 : x
  2. Step 2: Convert to fraction form
    216,343.31/324,515.18 = 56,419.12/x
  3. Step 3: Cross multiply
    216,343.31x = 324,515.18 × 56,419.12
  4. Step 4: Simplify right side
    216,343.31x = 18,308,860,600.15
  5. Step 5: Solve for x
    x = 18,308,860,600.15/216,343.31
  6. Step 6: Final answer
    x = 84,628.74

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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.