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Finding the Fourth Proportional to 181,228.62, 250,100.91 and 109,621.74

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Solution

The fourth proportional to 181,228.62, 250,100.91 and 109,621.74 is: 151,281.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,228.62 : 250,100.91 = 109,621.74 : x
  2. Step 2: Convert to fraction form
    181,228.62/250,100.91 = 109,621.74/x
  3. Step 3: Cross multiply
    181,228.62x = 250,100.91 × 109,621.74
  4. Step 4: Simplify right side
    181,228.62x = 27,416,496,929.78
  5. Step 5: Solve for x
    x = 27,416,496,929.78/181,228.62
  6. Step 6: Final answer
    x = 151,281.28

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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.