Home / 245,600.70-339,143.67-155,118.30

Finding the Fourth Proportional to 245,600.70, 339,143.67 and 155,118.30

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Solution

The fourth proportional to 245,600.70, 339,143.67 and 155,118.30 is: 214,198.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,600.70 : 339,143.67 = 155,118.30 : x
  2. Step 2: Convert to fraction form
    245,600.70/339,143.67 = 155,118.30/x
  3. Step 3: Cross multiply
    245,600.70x = 339,143.67 × 155,118.30
  4. Step 4: Simplify right side
    245,600.70x = 52,607,389,546.16
  5. Step 5: Solve for x
    x = 52,607,389,546.16/245,600.70
  6. Step 6: Final answer
    x = 214,198.86

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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.