Home / 307,581.45-461,436.98-129,997.05

Finding the Fourth Proportional to 307,581.45, 461,436.98 and 129,997.05

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Solution

The fourth proportional to 307,581.45, 461,436.98 and 129,997.05 is: 195,022.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,581.45 : 461,436.98 = 129,997.05 : x
  2. Step 2: Convert to fraction form
    307,581.45/461,436.98 = 129,997.05/x
  3. Step 3: Cross multiply
    307,581.45x = 461,436.98 × 129,997.05
  4. Step 4: Simplify right side
    307,581.45x = 59,985,445,510.92
  5. Step 5: Solve for x
    x = 59,985,445,510.92/307,581.45
  6. Step 6: Final answer
    x = 195,022.96

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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.