Home / 328,824.60-492,362.10-209,851.80

Finding the Fourth Proportional to 328,824.60, 492,362.10 and 209,851.80

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Solution

The fourth proportional to 328,824.60, 492,362.10 and 209,851.80 is: 314,219.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,824.60 : 492,362.10 = 209,851.80 : x
  2. Step 2: Convert to fraction form
    328,824.60/492,362.10 = 209,851.80/x
  3. Step 3: Cross multiply
    328,824.60x = 492,362.10 × 209,851.80
  4. Step 4: Simplify right side
    328,824.60x = 103,323,072,936.78
  5. Step 5: Solve for x
    x = 103,323,072,936.78/328,824.60
  6. Step 6: Final answer
    x = 314,219.41

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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.