Home / 458,172.59-687,277.40-218,163.02

Finding the Fourth Proportional to 458,172.59, 687,277.40 and 218,163.02

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Solution

The fourth proportional to 458,172.59, 687,277.40 and 218,163.02 is: 327,253.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,172.59 : 687,277.40 = 218,163.02 : x
  2. Step 2: Convert to fraction form
    458,172.59/687,277.40 = 218,163.02/x
  3. Step 3: Cross multiply
    458,172.59x = 687,277.40 × 218,163.02
  4. Step 4: Simplify right side
    458,172.59x = 149,938,508,634.55
  5. Step 5: Solve for x
    x = 149,938,508,634.55/458,172.59
  6. Step 6: Final answer
    x = 327,253.34

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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.