Home / 356,050.12-491,336.85-203,137.81

Finding the Fourth Proportional to 356,050.12, 491,336.85 and 203,137.81

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Solution

The fourth proportional to 356,050.12, 491,336.85 and 203,137.81 is: 280,323.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,050.12 : 491,336.85 = 203,137.81 : x
  2. Step 2: Convert to fraction form
    356,050.12/491,336.85 = 203,137.81/x
  3. Step 3: Cross multiply
    356,050.12x = 491,336.85 × 203,137.81
  4. Step 4: Simplify right side
    356,050.12x = 99,809,091,681.30
  5. Step 5: Solve for x
    x = 99,809,091,681.30/356,050.12
  6. Step 6: Final answer
    x = 280,323.15

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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.