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Finding the Fourth Proportional to 293,391.40, 440,087.10 and 143,727.70

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Solution

The fourth proportional to 293,391.40, 440,087.10 and 143,727.70 is: 215,591.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,391.40 : 440,087.10 = 143,727.70 : x
  2. Step 2: Convert to fraction form
    293,391.40/440,087.10 = 143,727.70/x
  3. Step 3: Cross multiply
    293,391.40x = 440,087.10 × 143,727.70
  4. Step 4: Simplify right side
    293,391.40x = 63,252,706,682.67
  5. Step 5: Solve for x
    x = 63,252,706,682.67/293,391.40
  6. Step 6: Final answer
    x = 215,591.55

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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.