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Finding the Fourth Proportional to 258,181.92, 356,324.40 and 145,004.67

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Solution

The fourth proportional to 258,181.92, 356,324.40 and 145,004.67 is: 200,125.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,181.92 : 356,324.40 = 145,004.67 : x
  2. Step 2: Convert to fraction form
    258,181.92/356,324.40 = 145,004.67/x
  3. Step 3: Cross multiply
    258,181.92x = 356,324.40 × 145,004.67
  4. Step 4: Simplify right side
    258,181.92x = 51,668,702,034.95
  5. Step 5: Solve for x
    x = 51,668,702,034.95/258,181.92
  6. Step 6: Final answer
    x = 200,125.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.