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Finding the Fourth Proportional to 402,359.55, 603,583.05 and 149,610.39

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Solution

The fourth proportional to 402,359.55, 603,583.05 and 149,610.39 is: 224,431.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,359.55 : 603,583.05 = 149,610.39 : x
  2. Step 2: Convert to fraction form
    402,359.55/603,583.05 = 149,610.39/x
  3. Step 3: Cross multiply
    402,359.55x = 603,583.05 × 149,610.39
  4. Step 4: Simplify right side
    402,359.55x = 90,302,295,507.89
  5. Step 5: Solve for x
    x = 90,302,295,507.89/402,359.55
  6. Step 6: Final answer
    x = 224,431.84

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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.