Home / 328,008.20-492,242.70-141,153.80

Finding the Fourth Proportional to 328,008.20, 492,242.70 and 141,153.80

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Solution

The fourth proportional to 328,008.20, 492,242.70 and 141,153.80 is: 211,829.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,008.20 : 492,242.70 = 141,153.80 : x
  2. Step 2: Convert to fraction form
    328,008.20/492,242.70 = 141,153.80/x
  3. Step 3: Cross multiply
    328,008.20x = 492,242.70 × 141,153.80
  4. Step 4: Simplify right side
    328,008.20x = 69,481,927,627.26
  5. Step 5: Solve for x
    x = 69,481,927,627.26/328,008.20
  6. Step 6: Final answer
    x = 211,829.85

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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.