Home / 279,904.90-419,588.55-92,820.10

Finding the Fourth Proportional to 279,904.90, 419,588.55 and 92,820.10

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Solution

The fourth proportional to 279,904.90, 419,588.55 and 92,820.10 is: 139,141.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,904.90 : 419,588.55 = 92,820.10 : x
  2. Step 2: Convert to fraction form
    279,904.90/419,588.55 = 92,820.10/x
  3. Step 3: Cross multiply
    279,904.90x = 419,588.55 × 92,820.10
  4. Step 4: Simplify right side
    279,904.90x = 38,946,251,169.86
  5. Step 5: Solve for x
    x = 38,946,251,169.86/279,904.90
  6. Step 6: Final answer
    x = 139,141.01

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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.