Home / 344,037.20-516,080.16-91,315.64

Finding the Fourth Proportional to 344,037.20, 516,080.16 and 91,315.64

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Solution

The fourth proportional to 344,037.20, 516,080.16 and 91,315.64 is: 136,979.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,037.20 : 516,080.16 = 91,315.64 : x
  2. Step 2: Convert to fraction form
    344,037.20/516,080.16 = 91,315.64/x
  3. Step 3: Cross multiply
    344,037.20x = 516,080.16 × 91,315.64
  4. Step 4: Simplify right side
    344,037.20x = 47,126,190,101.70
  5. Step 5: Solve for x
    x = 47,126,190,101.70/344,037.20
  6. Step 6: Final answer
    x = 136,979.93

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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.