Home / 251,719.60-378,016.80-243,846.40

Finding the Fourth Proportional to 251,719.60, 378,016.80 and 243,846.40

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Solution

The fourth proportional to 251,719.60, 378,016.80 and 243,846.40 is: 366,193.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,719.60 : 378,016.80 = 243,846.40 : x
  2. Step 2: Convert to fraction form
    251,719.60/378,016.80 = 243,846.40/x
  3. Step 3: Cross multiply
    251,719.60x = 378,016.80 × 243,846.40
  4. Step 4: Simplify right side
    251,719.60x = 92,178,035,819.52
  5. Step 5: Solve for x
    x = 92,178,035,819.52/251,719.60
  6. Step 6: Final answer
    x = 366,193.32

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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.