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Finding the Fourth Proportional to 409,555.00, 614,609.29 and 143,317.82

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Solution

The fourth proportional to 409,555.00, 614,609.29 and 143,317.82 is: 215,073.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,555.00 : 614,609.29 = 143,317.82 : x
  2. Step 2: Convert to fraction form
    409,555.00/614,609.29 = 143,317.82/x
  3. Step 3: Cross multiply
    409,555.00x = 614,609.29 × 143,317.82
  4. Step 4: Simplify right side
    409,555.00x = 88,084,464,504.06
  5. Step 5: Solve for x
    x = 88,084,464,504.06/409,555.00
  6. Step 6: Final answer
    x = 215,073.59

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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.