Home / 272,580.50-408,445.65-172,529.34

Finding the Fourth Proportional to 272,580.50, 408,445.65 and 172,529.34

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Solution

The fourth proportional to 272,580.50, 408,445.65 and 172,529.34 is: 258,524.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,580.50 : 408,445.65 = 172,529.34 : x
  2. Step 2: Convert to fraction form
    272,580.50/408,445.65 = 172,529.34/x
  3. Step 3: Cross multiply
    272,580.50x = 408,445.65 × 172,529.34
  4. Step 4: Simplify right side
    272,580.50x = 70,468,858,420.37
  5. Step 5: Solve for x
    x = 70,468,858,420.37/272,580.50
  6. Step 6: Final answer
    x = 258,524.95

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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.