Home / 361,185.43-498,441.15-208,220.77

Finding the Fourth Proportional to 361,185.43, 498,441.15 and 208,220.77

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Solution

The fourth proportional to 361,185.43, 498,441.15 and 208,220.77 is: 287,347.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,185.43 : 498,441.15 = 208,220.77 : x
  2. Step 2: Convert to fraction form
    361,185.43/498,441.15 = 208,220.77/x
  3. Step 3: Cross multiply
    361,185.43x = 498,441.15 × 208,220.77
  4. Step 4: Simplify right side
    361,185.43x = 103,785,800,052.69
  5. Step 5: Solve for x
    x = 103,785,800,052.69/361,185.43
  6. Step 6: Final answer
    x = 287,347.69

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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.