Home / 356,116.25-491,439.12-203,154.19

Finding the Fourth Proportional to 356,116.25, 491,439.12 and 203,154.19

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Solution

The fourth proportional to 356,116.25, 491,439.12 and 203,154.19 is: 280,352.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,116.25 : 491,439.12 = 203,154.19 : x
  2. Step 2: Convert to fraction form
    356,116.25/491,439.12 = 203,154.19/x
  3. Step 3: Cross multiply
    356,116.25x = 491,439.12 × 203,154.19
  4. Step 4: Simplify right side
    356,116.25x = 99,837,916,357.91
  5. Step 5: Solve for x
    x = 99,837,916,357.91/356,116.25
  6. Step 6: Final answer
    x = 280,352.04

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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.