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Finding the Fourth Proportional to 245,208.96, 338,424.96 and 149,770.56

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Solution

The fourth proportional to 245,208.96, 338,424.96 and 149,770.56 is: 206,705.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,208.96 : 338,424.96 = 149,770.56 : x
  2. Step 2: Convert to fraction form
    245,208.96/338,424.96 = 149,770.56/x
  3. Step 3: Cross multiply
    245,208.96x = 338,424.96 × 149,770.56
  4. Step 4: Simplify right side
    245,208.96x = 50,686,095,777.18
  5. Step 5: Solve for x
    x = 50,686,095,777.18/245,208.96
  6. Step 6: Final answer
    x = 206,705.72

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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.