Home / 279,977.60-419,966.40-102,502.55

Finding the Fourth Proportional to 279,977.60, 419,966.40 and 102,502.55

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Solution

The fourth proportional to 279,977.60, 419,966.40 and 102,502.55 is: 153,753.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,977.60 : 419,966.40 = 102,502.55 : x
  2. Step 2: Convert to fraction form
    279,977.60/419,966.40 = 102,502.55/x
  3. Step 3: Cross multiply
    279,977.60x = 419,966.40 × 102,502.55
  4. Step 4: Simplify right side
    279,977.60x = 43,047,626,914.32
  5. Step 5: Solve for x
    x = 43,047,626,914.32/279,977.60
  6. Step 6: Final answer
    x = 153,753.83

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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.