Home / 238,977.20-358,465.80-228,479.60

Finding the Fourth Proportional to 238,977.20, 358,465.80 and 228,479.60

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Solution

The fourth proportional to 238,977.20, 358,465.80 and 228,479.60 is: 342,719.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,977.20 : 358,465.80 = 228,479.60 : x
  2. Step 2: Convert to fraction form
    238,977.20/358,465.80 = 228,479.60/x
  3. Step 3: Cross multiply
    238,977.20x = 358,465.80 × 228,479.60
  4. Step 4: Simplify right side
    238,977.20x = 81,902,122,597.68
  5. Step 5: Solve for x
    x = 81,902,122,597.68/238,977.20
  6. Step 6: Final answer
    x = 342,719.40

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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.