Home / 212,923.60-319,385.40-181,260.70

Finding the Fourth Proportional to 212,923.60, 319,385.40 and 181,260.70

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Solution

The fourth proportional to 212,923.60, 319,385.40 and 181,260.70 is: 271,891.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,923.60 : 319,385.40 = 181,260.70 : x
  2. Step 2: Convert to fraction form
    212,923.60/319,385.40 = 181,260.70/x
  3. Step 3: Cross multiply
    212,923.60x = 319,385.40 × 181,260.70
  4. Step 4: Simplify right side
    212,923.60x = 57,892,021,173.78
  5. Step 5: Solve for x
    x = 57,892,021,173.78/212,923.60
  6. Step 6: Final answer
    x = 271,891.05

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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.