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Finding the Fourth Proportional to 342,935.33, 514,403.06 and 143,146.73

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Solution

The fourth proportional to 342,935.33, 514,403.06 and 143,146.73 is: 214,720.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,935.33 : 514,403.06 = 143,146.73 : x
  2. Step 2: Convert to fraction form
    342,935.33/514,403.06 = 143,146.73/x
  3. Step 3: Cross multiply
    342,935.33x = 514,403.06 × 143,146.73
  4. Step 4: Simplify right side
    342,935.33x = 73,635,115,940.99
  5. Step 5: Solve for x
    x = 73,635,115,940.99/342,935.33
  6. Step 6: Final answer
    x = 214,720.12

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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.