Home / 297,277.13-445,983.82-128,825.74

Finding the Fourth Proportional to 297,277.13, 445,983.82 and 128,825.74

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Solution

The fourth proportional to 297,277.13, 445,983.82 and 128,825.74 is: 193,268.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,277.13 : 445,983.82 = 128,825.74 : x
  2. Step 2: Convert to fraction form
    297,277.13/445,983.82 = 128,825.74/x
  3. Step 3: Cross multiply
    297,277.13x = 445,983.82 × 128,825.74
  4. Step 4: Simplify right side
    297,277.13x = 57,454,192,765.48
  5. Step 5: Solve for x
    x = 57,454,192,765.48/297,277.13
  6. Step 6: Final answer
    x = 193,268.12

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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.