Home / 344,568.16-516,811.20-91,867.60

Finding the Fourth Proportional to 344,568.16, 516,811.20 and 91,867.60

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Solution

The fourth proportional to 344,568.16, 516,811.20 and 91,867.60 is: 137,790.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,568.16 : 516,811.20 = 91,867.60 : x
  2. Step 2: Convert to fraction form
    344,568.16/516,811.20 = 91,867.60/x
  3. Step 3: Cross multiply
    344,568.16x = 516,811.20 × 91,867.60
  4. Step 4: Simplify right side
    344,568.16x = 47,478,204,597.12
  5. Step 5: Solve for x
    x = 47,478,204,597.12/344,568.16
  6. Step 6: Final answer
    x = 137,790.46

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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.