Home / 280,149.75-386,606.67-152,825.85

Finding the Fourth Proportional to 280,149.75, 386,606.67 and 152,825.85

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Solution

The fourth proportional to 280,149.75, 386,606.67 and 152,825.85 is: 210,899.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,149.75 : 386,606.67 = 152,825.85 : x
  2. Step 2: Convert to fraction form
    280,149.75/386,606.67 = 152,825.85/x
  3. Step 3: Cross multiply
    280,149.75x = 386,606.67 × 152,825.85
  4. Step 4: Simplify right side
    280,149.75x = 59,083,492,958.42
  5. Step 5: Solve for x
    x = 59,083,492,958.42/280,149.75
  6. Step 6: Final answer
    x = 210,899.68

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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.