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Finding the Fourth Proportional to 308,544.62, 425,831.01 and 172,586.12

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Solution

The fourth proportional to 308,544.62, 425,831.01 and 172,586.12 is: 238,190.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,544.62 : 425,831.01 = 172,586.12 : x
  2. Step 2: Convert to fraction form
    308,544.62/425,831.01 = 172,586.12/x
  3. Step 3: Cross multiply
    308,544.62x = 425,831.01 × 172,586.12
  4. Step 4: Simplify right side
    308,544.62x = 73,492,521,791.58
  5. Step 5: Solve for x
    x = 73,492,521,791.58/308,544.62
  6. Step 6: Final answer
    x = 238,190.90

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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.