Home / 212,579.20-293,380-158,770.80

Finding the Fourth Proportional to 212,579.20, 293,380 and 158,770.80

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Solution

The fourth proportional to 212,579.20, 293,380 and 158,770.80 is: 219,119.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,579.20 : 293,380 = 158,770.80 : x
  2. Step 2: Convert to fraction form
    212,579.20/293,380 = 158,770.80/x
  3. Step 3: Cross multiply
    212,579.20x = 293,380 × 158,770.80
  4. Step 4: Simplify right side
    212,579.20x = 46,580,177,304
  5. Step 5: Solve for x
    x = 46,580,177,304/212,579.20
  6. Step 6: Final answer
    x = 219,119.17

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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.