Home / 272,229.21-408,395.32-89,870.31

Finding the Fourth Proportional to 272,229.21, 408,395.32 and 89,870.31

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Solution

The fourth proportional to 272,229.21, 408,395.32 and 89,870.31 is: 134,822.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,229.21 : 408,395.32 = 89,870.31 : x
  2. Step 2: Convert to fraction form
    272,229.21/408,395.32 = 89,870.31/x
  3. Step 3: Cross multiply
    272,229.21x = 408,395.32 × 89,870.31
  4. Step 4: Simplify right side
    272,229.21x = 36,702,613,786.27
  5. Step 5: Solve for x
    x = 36,702,613,786.27/272,229.21
  6. Step 6: Final answer
    x = 134,822.47

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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.