Home / 293,633.28-440,391.60-143,809.20

Finding the Fourth Proportional to 293,633.28, 440,391.60 and 143,809.20

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Solution

The fourth proportional to 293,633.28, 440,391.60 and 143,809.20 is: 215,685.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,633.28 : 440,391.60 = 143,809.20 : x
  2. Step 2: Convert to fraction form
    293,633.28/440,391.60 = 143,809.20/x
  3. Step 3: Cross multiply
    293,633.28x = 440,391.60 × 143,809.20
  4. Step 4: Simplify right side
    293,633.28x = 63,332,363,682.72
  5. Step 5: Solve for x
    x = 63,332,363,682.72/293,633.28
  6. Step 6: Final answer
    x = 215,685.24

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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.