Home / 272,622.40-408,933.60-172,895.20

Finding the Fourth Proportional to 272,622.40, 408,933.60 and 172,895.20

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Solution

The fourth proportional to 272,622.40, 408,933.60 and 172,895.20 is: 259,342.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,622.40 : 408,933.60 = 172,895.20 : x
  2. Step 2: Convert to fraction form
    272,622.40/408,933.60 = 172,895.20/x
  3. Step 3: Cross multiply
    272,622.40x = 408,933.60 × 172,895.20
  4. Step 4: Simplify right side
    272,622.40x = 70,702,656,558.72
  5. Step 5: Solve for x
    x = 70,702,656,558.72/272,622.40
  6. Step 6: Final answer
    x = 259,342.80

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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.