Home / 307,490.20-461,321.70-149,723.80

Finding the Fourth Proportional to 307,490.20, 461,321.70 and 149,723.80

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Solution

The fourth proportional to 307,490.20, 461,321.70 and 149,723.80 is: 224,627.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,490.20 : 461,321.70 = 149,723.80 : x
  2. Step 2: Convert to fraction form
    307,490.20/461,321.70 = 149,723.80/x
  3. Step 3: Cross multiply
    307,490.20x = 461,321.70 × 149,723.80
  4. Step 4: Simplify right side
    307,490.20x = 69,070,837,946.46
  5. Step 5: Solve for x
    x = 69,070,837,946.46/307,490.20
  6. Step 6: Final answer
    x = 224,627.77

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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.