Home / 217,129.44-299,822.16-163,320.72

Finding the Fourth Proportional to 217,129.44, 299,822.16 and 163,320.72

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Solution

The fourth proportional to 217,129.44, 299,822.16 and 163,320.72 is: 225,520.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,129.44 : 299,822.16 = 163,320.72 : x
  2. Step 2: Convert to fraction form
    217,129.44/299,822.16 = 163,320.72/x
  3. Step 3: Cross multiply
    217,129.44x = 299,822.16 × 163,320.72
  4. Step 4: Simplify right side
    217,129.44x = 48,967,171,043.16
  5. Step 5: Solve for x
    x = 48,967,171,043.16/217,129.44
  6. Step 6: Final answer
    x = 225,520.64

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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.