Home / 389,311.59-537,148.31-228,079.92

Finding the Fourth Proportional to 389,311.59, 537,148.31 and 228,079.92

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Solution

The fourth proportional to 389,311.59, 537,148.31 and 228,079.92 is: 314,690.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,311.59 : 537,148.31 = 228,079.92 : x
  2. Step 2: Convert to fraction form
    389,311.59/537,148.31 = 228,079.92/x
  3. Step 3: Cross multiply
    389,311.59x = 537,148.31 × 228,079.92
  4. Step 4: Simplify right side
    389,311.59x = 122,512,742,432.54
  5. Step 5: Solve for x
    x = 122,512,742,432.54/389,311.59
  6. Step 6: Final answer
    x = 314,690.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.