Home / 389,559.20-537,592.23-219,809.12

Finding the Fourth Proportional to 389,559.20, 537,592.23 and 219,809.12

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Solution

The fourth proportional to 389,559.20, 537,592.23 and 219,809.12 is: 303,336.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,559.20 : 537,592.23 = 219,809.12 : x
  2. Step 2: Convert to fraction form
    389,559.20/537,592.23 = 219,809.12/x
  3. Step 3: Cross multiply
    389,559.20x = 537,592.23 × 219,809.12
  4. Step 4: Simplify right side
    389,559.20x = 118,167,672,307.18
  5. Step 5: Solve for x
    x = 118,167,672,307.18/389,559.20
  6. Step 6: Final answer
    x = 303,336.88

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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.