Home / 293,464.28-440,138.10-143,640.20

Finding the Fourth Proportional to 293,464.28, 440,138.10 and 143,640.20

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Solution

The fourth proportional to 293,464.28, 440,138.10 and 143,640.20 is: 215,431.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,464.28 : 440,138.10 = 143,640.20 : x
  2. Step 2: Convert to fraction form
    293,464.28/440,138.10 = 143,640.20/x
  3. Step 3: Cross multiply
    293,464.28x = 440,138.10 × 143,640.20
  4. Step 4: Simplify right side
    293,464.28x = 63,221,524,711.62
  5. Step 5: Solve for x
    x = 63,221,524,711.62/293,464.28
  6. Step 6: Final answer
    x = 215,431.75

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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.