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Finding the Fourth Proportional to 481,810.40, 722,715.60 and 149,343.20

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Solution

The fourth proportional to 481,810.40, 722,715.60 and 149,343.20 is: 224,014.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,810.40 : 722,715.60 = 149,343.20 : x
  2. Step 2: Convert to fraction form
    481,810.40/722,715.60 = 149,343.20/x
  3. Step 3: Cross multiply
    481,810.40x = 722,715.60 × 149,343.20
  4. Step 4: Simplify right side
    481,810.40x = 107,932,660,393.92
  5. Step 5: Solve for x
    x = 107,932,660,393.92/481,810.40
  6. Step 6: Final answer
    x = 224,014.80

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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.