Home / 279,837.90-419,602.95-191,191.50

Finding the Fourth Proportional to 279,837.90, 419,602.95 and 191,191.50

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Solution

The fourth proportional to 279,837.90, 419,602.95 and 191,191.50 is: 286,682.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,837.90 : 419,602.95 = 191,191.50 : x
  2. Step 2: Convert to fraction form
    279,837.90/419,602.95 = 191,191.50/x
  3. Step 3: Cross multiply
    279,837.90x = 419,602.95 × 191,191.50
  4. Step 4: Simplify right side
    279,837.90x = 80,224,517,414.93
  5. Step 5: Solve for x
    x = 80,224,517,414.93/279,837.90
  6. Step 6: Final answer
    x = 286,682.10

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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.