Home / 354,028.23-531,263.81-143,666.18

Finding the Fourth Proportional to 354,028.23, 531,263.81 and 143,666.18

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Solution

The fourth proportional to 354,028.23, 531,263.81 and 143,666.18 is: 215,589.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,028.23 : 531,263.81 = 143,666.18 : x
  2. Step 2: Convert to fraction form
    354,028.23/531,263.81 = 143,666.18/x
  3. Step 3: Cross multiply
    354,028.23x = 531,263.81 × 143,666.18
  4. Step 4: Simplify right side
    354,028.23x = 76,324,638,780.30
  5. Step 5: Solve for x
    x = 76,324,638,780.30/354,028.23
  6. Step 6: Final answer
    x = 215,589.13

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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.