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Finding the Fourth Proportional to 418,747.51, 628,179.18 and 134,371.19

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Solution

The fourth proportional to 418,747.51, 628,179.18 and 134,371.19 is: 201,575.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,747.51 : 628,179.18 = 134,371.19 : x
  2. Step 2: Convert to fraction form
    418,747.51/628,179.18 = 134,371.19/x
  3. Step 3: Cross multiply
    418,747.51x = 628,179.18 × 134,371.19
  4. Step 4: Simplify right side
    418,747.51x = 84,409,183,949.82
  5. Step 5: Solve for x
    x = 84,409,183,949.82/418,747.51
  6. Step 6: Final answer
    x = 201,575.37

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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.