Home / 272,000.20-408,000.30-171,835.60

Finding the Fourth Proportional to 272,000.20, 408,000.30 and 171,835.60

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Solution

The fourth proportional to 272,000.20, 408,000.30 and 171,835.60 is: 257,753.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,000.20 : 408,000.30 = 171,835.60 : x
  2. Step 2: Convert to fraction form
    272,000.20/408,000.30 = 171,835.60/x
  3. Step 3: Cross multiply
    272,000.20x = 408,000.30 × 171,835.60
  4. Step 4: Simplify right side
    272,000.20x = 70,108,976,350.68
  5. Step 5: Solve for x
    x = 70,108,976,350.68/272,000.20
  6. Step 6: Final answer
    x = 257,753.40

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1.5x scale

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.