Home / 330,536.21-495,715.76-143,503.25

Finding the Fourth Proportional to 330,536.21, 495,715.76 and 143,503.25

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Solution

The fourth proportional to 330,536.21, 495,715.76 and 143,503.25 is: 215,216.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,536.21 : 495,715.76 = 143,503.25 : x
  2. Step 2: Convert to fraction form
    330,536.21/495,715.76 = 143,503.25/x
  3. Step 3: Cross multiply
    330,536.21x = 495,715.76 × 143,503.25
  4. Step 4: Simplify right side
    330,536.21x = 71,136,821,918.70
  5. Step 5: Solve for x
    x = 71,136,821,918.70/330,536.21
  6. Step 6: Final answer
    x = 215,216.43

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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.