Home / 285,077.45-393,380.17-170,333.24

Finding the Fourth Proportional to 285,077.45, 393,380.17 and 170,333.24

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Solution

The fourth proportional to 285,077.45, 393,380.17 and 170,333.24 is: 235,043.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,077.45 : 393,380.17 = 170,333.24 : x
  2. Step 2: Convert to fraction form
    285,077.45/393,380.17 = 170,333.24/x
  3. Step 3: Cross multiply
    285,077.45x = 393,380.17 × 170,333.24
  4. Step 4: Simplify right side
    285,077.45x = 67,005,716,515.12
  5. Step 5: Solve for x
    x = 67,005,716,515.12/285,077.45
  6. Step 6: Final answer
    x = 235,043.90

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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.