Home / 279,423.03-419,134.68-92,434.53

Finding the Fourth Proportional to 279,423.03, 419,134.68 and 92,434.53

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Solution

The fourth proportional to 279,423.03, 419,134.68 and 92,434.53 is: 138,651.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,423.03 : 419,134.68 = 92,434.53 : x
  2. Step 2: Convert to fraction form
    279,423.03/419,134.68 = 92,434.53/x
  3. Step 3: Cross multiply
    279,423.03x = 419,134.68 × 92,434.53
  4. Step 4: Simplify right side
    279,423.03x = 38,742,517,152.50
  5. Step 5: Solve for x
    x = 38,742,517,152.50/279,423.03
  6. Step 6: Final answer
    x = 138,651.84

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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.