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Finding the Fourth Proportional to 328,173, 452,878.98 and 177,270

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Solution

The fourth proportional to 328,173, 452,878.98 and 177,270 is: 244,632.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,173 : 452,878.98 = 177,270 : x
  2. Step 2: Convert to fraction form
    328,173/452,878.98 = 177,270/x
  3. Step 3: Cross multiply
    328,173x = 452,878.98 × 177,270
  4. Step 4: Simplify right side
    328,173x = 80,281,856,784.60
  5. Step 5: Solve for x
    x = 80,281,856,784.60/328,173
  6. Step 6: Final answer
    x = 244,632.73

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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.