Home / 209,215.73-313,820.85-51,445.55

Finding the Fourth Proportional to 209,215.73, 313,820.85 and 51,445.55

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Solution

The fourth proportional to 209,215.73, 313,820.85 and 51,445.55 is: 77,167.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,215.73 : 313,820.85 = 51,445.55 : x
  2. Step 2: Convert to fraction form
    209,215.73/313,820.85 = 51,445.55/x
  3. Step 3: Cross multiply
    209,215.73x = 313,820.85 × 51,445.55
  4. Step 4: Simplify right side
    209,215.73x = 16,144,684,660.61
  5. Step 5: Solve for x
    x = 16,144,684,660.61/209,215.73
  6. Step 6: Final answer
    x = 77,167.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.