Home / 389,929.14-538,094.34-220,159.62

Finding the Fourth Proportional to 389,929.14, 538,094.34 and 220,159.62

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Solution

The fourth proportional to 389,929.14, 538,094.34 and 220,159.62 is: 303,815.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,929.14 : 538,094.34 = 220,159.62 : x
  2. Step 2: Convert to fraction form
    389,929.14/538,094.34 = 220,159.62/x
  3. Step 3: Cross multiply
    389,929.14x = 538,094.34 × 220,159.62
  4. Step 4: Simplify right side
    389,929.14x = 118,466,645,418.55
  5. Step 5: Solve for x
    x = 118,466,645,418.55/389,929.14
  6. Step 6: Final answer
    x = 303,815.83

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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.