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Finding the Fourth Proportional to 503,119.05, 754,683.09 and 143,289.57

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Solution

The fourth proportional to 503,119.05, 754,683.09 and 143,289.57 is: 214,935.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,119.05 : 754,683.09 = 143,289.57 : x
  2. Step 2: Convert to fraction form
    503,119.05/754,683.09 = 143,289.57/x
  3. Step 3: Cross multiply
    503,119.05x = 754,683.09 × 143,289.57
  4. Step 4: Simplify right side
    503,119.05x = 108,138,215,452.37
  5. Step 5: Solve for x
    x = 108,138,215,452.37/503,119.05
  6. Step 6: Final answer
    x = 214,935.64

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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.