Home / 329,211.14-493,719.30-139,669.11

Finding the Fourth Proportional to 329,211.14, 493,719.30 and 139,669.11

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Solution

The fourth proportional to 329,211.14, 493,719.30 and 139,669.11 is: 209,462.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,211.14 : 493,719.30 = 139,669.11 : x
  2. Step 2: Convert to fraction form
    329,211.14/493,719.30 = 139,669.11/x
  3. Step 3: Cross multiply
    329,211.14x = 493,719.30 × 139,669.11
  4. Step 4: Simplify right side
    329,211.14x = 68,957,335,220.82
  5. Step 5: Solve for x
    x = 68,957,335,220.82/329,211.14
  6. Step 6: Final answer
    x = 209,462.34

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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.