Home / 205,180.20-307,070.10-171,937.80

Finding the Fourth Proportional to 205,180.20, 307,070.10 and 171,937.80

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Solution

The fourth proportional to 205,180.20, 307,070.10 and 171,937.80 is: 257,319.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,180.20 : 307,070.10 = 171,937.80 : x
  2. Step 2: Convert to fraction form
    205,180.20/307,070.10 = 171,937.80/x
  3. Step 3: Cross multiply
    205,180.20x = 307,070.10 × 171,937.80
  4. Step 4: Simplify right side
    205,180.20x = 52,796,957,439.78
  5. Step 5: Solve for x
    x = 52,796,957,439.78/205,180.20
  6. Step 6: Final answer
    x = 257,319.94

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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.