Home / 403,419.04-605,194.22-119,138.34

Finding the Fourth Proportional to 403,419.04, 605,194.22 and 119,138.34

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Solution

The fourth proportional to 403,419.04, 605,194.22 and 119,138.34 is: 178,726.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,419.04 : 605,194.22 = 119,138.34 : x
  2. Step 2: Convert to fraction form
    403,419.04/605,194.22 = 119,138.34/x
  3. Step 3: Cross multiply
    403,419.04x = 605,194.22 × 119,138.34
  4. Step 4: Simplify right side
    403,419.04x = 72,101,834,748.39
  5. Step 5: Solve for x
    x = 72,101,834,748.39/403,419.04
  6. Step 6: Final answer
    x = 178,726.90

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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.