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Finding the Fourth Proportional to 418,561.56, 628,236.90 and 152,579.16

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Solution

The fourth proportional to 418,561.56, 628,236.90 and 152,579.16 is: 229,012.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,561.56 : 628,236.90 = 152,579.16 : x
  2. Step 2: Convert to fraction form
    418,561.56/628,236.90 = 152,579.16/x
  3. Step 3: Cross multiply
    418,561.56x = 628,236.90 × 152,579.16
  4. Step 4: Simplify right side
    418,561.56x = 95,855,858,483.00
  5. Step 5: Solve for x
    x = 95,855,858,483.00/418,561.56
  6. Step 6: Final answer
    x = 229,012.57

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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.