Home / 402,811.72-603,823.50-166,353.64

Finding the Fourth Proportional to 402,811.72, 603,823.50 and 166,353.64

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Solution

The fourth proportional to 402,811.72, 603,823.50 and 166,353.64 is: 249,367.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,811.72 : 603,823.50 = 166,353.64 : x
  2. Step 2: Convert to fraction form
    402,811.72/603,823.50 = 166,353.64/x
  3. Step 3: Cross multiply
    402,811.72x = 603,823.50 × 166,353.64
  4. Step 4: Simplify right side
    402,811.72x = 100,448,237,142.54
  5. Step 5: Solve for x
    x = 100,448,237,142.54/402,811.72
  6. Step 6: Final answer
    x = 249,367.71

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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.