Home / 289,186.20-399,091.86-160,124.04

Finding the Fourth Proportional to 289,186.20, 399,091.86 and 160,124.04

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Solution

The fourth proportional to 289,186.20, 399,091.86 and 160,124.04 is: 220,979.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,186.20 : 399,091.86 = 160,124.04 : x
  2. Step 2: Convert to fraction form
    289,186.20/399,091.86 = 160,124.04/x
  3. Step 3: Cross multiply
    289,186.20x = 399,091.86 × 160,124.04
  4. Step 4: Simplify right side
    289,186.20x = 63,904,200,954.31
  5. Step 5: Solve for x
    x = 63,904,200,954.31/289,186.20
  6. Step 6: Final answer
    x = 220,979.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.