Home / 293,015.12-439,519.32-71,399.12

Finding the Fourth Proportional to 293,015.12, 439,519.32 and 71,399.12

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Solution

The fourth proportional to 293,015.12, 439,519.32 and 71,399.12 is: 107,097.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,015.12 : 439,519.32 = 71,399.12 : x
  2. Step 2: Convert to fraction form
    293,015.12/439,519.32 = 71,399.12/x
  3. Step 3: Cross multiply
    293,015.12x = 439,519.32 × 71,399.12
  4. Step 4: Simplify right side
    293,015.12x = 31,381,292,671.00
  5. Step 5: Solve for x
    x = 31,381,292,671.00/293,015.12
  6. Step 6: Final answer
    x = 107,097.86

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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.