Home / 201,480.39-278,037.15-109,596.77

Finding the Fourth Proportional to 201,480.39, 278,037.15 and 109,596.77

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Solution

The fourth proportional to 201,480.39, 278,037.15 and 109,596.77 is: 151,240.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,480.39 : 278,037.15 = 109,596.77 : x
  2. Step 2: Convert to fraction form
    201,480.39/278,037.15 = 109,596.77/x
  3. Step 3: Cross multiply
    201,480.39x = 278,037.15 × 109,596.77
  4. Step 4: Simplify right side
    201,480.39x = 30,471,974,275.10
  5. Step 5: Solve for x
    x = 30,471,974,275.10/201,480.39
  6. Step 6: Final answer
    x = 151,240.40

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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.