Home / 307,478.20-461,303.70-149,711.80

Finding the Fourth Proportional to 307,478.20, 461,303.70 and 149,711.80

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Solution

The fourth proportional to 307,478.20, 461,303.70 and 149,711.80 is: 224,609.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,478.20 : 461,303.70 = 149,711.80 : x
  2. Step 2: Convert to fraction form
    307,478.20/461,303.70 = 149,711.80/x
  3. Step 3: Cross multiply
    307,478.20x = 461,303.70 × 149,711.80
  4. Step 4: Simplify right side
    307,478.20x = 69,062,607,273.66
  5. Step 5: Solve for x
    x = 69,062,607,273.66/307,478.20
  6. Step 6: Final answer
    x = 224,609.77

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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.