Home / 389,265.60-537,179.32-219,499.84

Finding the Fourth Proportional to 389,265.60, 537,179.32 and 219,499.84

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Solution

The fourth proportional to 389,265.60, 537,179.32 and 219,499.84 is: 302,905.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,265.60 : 537,179.32 = 219,499.84 : x
  2. Step 2: Convert to fraction form
    389,265.60/537,179.32 = 219,499.84/x
  3. Step 3: Cross multiply
    389,265.60x = 537,179.32 × 219,499.84
  4. Step 4: Simplify right side
    389,265.60x = 117,910,774,791.31
  5. Step 5: Solve for x
    x = 117,910,774,791.31/389,265.60
  6. Step 6: Final answer
    x = 302,905.71

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1.5x scale

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.