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Finding the Fourth Proportional to 328,236.60, 492,549.30 and 239,266.20

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Solution

The fourth proportional to 328,236.60, 492,549.30 and 239,266.20 is: 359,041.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,236.60 : 492,549.30 = 239,266.20 : x
  2. Step 2: Convert to fraction form
    328,236.60/492,549.30 = 239,266.20/x
  3. Step 3: Cross multiply
    328,236.60x = 492,549.30 × 239,266.20
  4. Step 4: Simplify right side
    328,236.60x = 117,850,399,323.66
  5. Step 5: Solve for x
    x = 117,850,399,323.66/328,236.60
  6. Step 6: Final answer
    x = 359,041.01

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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.