Home / 354,899.52-489,742.93-201,934.61

Finding the Fourth Proportional to 354,899.52, 489,742.93 and 201,934.61

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Solution

The fourth proportional to 354,899.52, 489,742.93 and 201,934.61 is: 278,659.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,899.52 : 489,742.93 = 201,934.61 : x
  2. Step 2: Convert to fraction form
    354,899.52/489,742.93 = 201,934.61/x
  3. Step 3: Cross multiply
    354,899.52x = 489,742.93 × 201,934.61
  4. Step 4: Simplify right side
    354,899.52x = 98,896,048,289.33
  5. Step 5: Solve for x
    x = 98,896,048,289.33/354,899.52
  6. Step 6: Final answer
    x = 278,659.29

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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.