Home / 353,789.56-530,683.14-143,427

Finding the Fourth Proportional to 353,789.56, 530,683.14 and 143,427

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Solution

The fourth proportional to 353,789.56, 530,683.14 and 143,427 is: 215,140.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,789.56 : 530,683.14 = 143,427 : x
  2. Step 2: Convert to fraction form
    353,789.56/530,683.14 = 143,427/x
  3. Step 3: Cross multiply
    353,789.56x = 530,683.14 × 143,427
  4. Step 4: Simplify right side
    353,789.56x = 76,114,290,720.78
  5. Step 5: Solve for x
    x = 76,114,290,720.78/353,789.56
  6. Step 6: Final answer
    x = 215,140.01

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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.