Home / 220,772.28-331,054.74-102,369.72

Finding the Fourth Proportional to 220,772.28, 331,054.74 and 102,369.72

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Solution

The fourth proportional to 220,772.28, 331,054.74 and 102,369.72 is: 153,506.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,772.28 : 331,054.74 = 102,369.72 : x
  2. Step 2: Convert to fraction form
    220,772.28/331,054.74 = 102,369.72/x
  3. Step 3: Cross multiply
    220,772.28x = 331,054.74 × 102,369.72
  4. Step 4: Simplify right side
    220,772.28x = 33,889,981,038.47
  5. Step 5: Solve for x
    x = 33,889,981,038.47/220,772.28
  6. Step 6: Final answer
    x = 153,506.50

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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.