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Finding the Fourth Proportional to 328,380.90, 453,164.67 and 177,477.90

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Solution

The fourth proportional to 328,380.90, 453,164.67 and 177,477.90 is: 244,918.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,380.90 : 453,164.67 = 177,477.90 : x
  2. Step 2: Convert to fraction form
    328,380.90/453,164.67 = 177,477.90/x
  3. Step 3: Cross multiply
    328,380.90x = 453,164.67 × 177,477.90
  4. Step 4: Simplify right side
    328,380.90x = 80,426,713,985.79
  5. Step 5: Solve for x
    x = 80,426,713,985.79/328,380.90
  6. Step 6: Final answer
    x = 244,918.98

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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.