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Finding the Fourth Proportional to 369,301.60, 554,389.80 and 209,504.80

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Solution

The fourth proportional to 369,301.60, 554,389.80 and 209,504.80 is: 314,505.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,301.60 : 554,389.80 = 209,504.80 : x
  2. Step 2: Convert to fraction form
    369,301.60/554,389.80 = 209,504.80/x
  3. Step 3: Cross multiply
    369,301.60x = 554,389.80 × 209,504.80
  4. Step 4: Simplify right side
    369,301.60x = 116,147,324,171.04
  5. Step 5: Solve for x
    x = 116,147,324,171.04/369,301.60
  6. Step 6: Final answer
    x = 314,505.34

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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.