Home / 272,370.66-408,755.28-139,362.18

Finding the Fourth Proportional to 272,370.66, 408,755.28 and 139,362.18

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Solution

The fourth proportional to 272,370.66, 408,755.28 and 139,362.18 is: 209,145.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,370.66 : 408,755.28 = 139,362.18 : x
  2. Step 2: Convert to fraction form
    272,370.66/408,755.28 = 139,362.18/x
  3. Step 3: Cross multiply
    272,370.66x = 408,755.28 × 139,362.18
  4. Step 4: Simplify right side
    272,370.66x = 56,965,026,907.31
  5. Step 5: Solve for x
    x = 56,965,026,907.31/272,370.66
  6. Step 6: Final answer
    x = 209,145.24

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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.