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Finding the Fourth Proportional to 368,996.80, 553,495.20 and 336,337.60

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Solution

The fourth proportional to 368,996.80, 553,495.20 and 336,337.60 is: 504,506.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,996.80 : 553,495.20 = 336,337.60 : x
  2. Step 2: Convert to fraction form
    368,996.80/553,495.20 = 336,337.60/x
  3. Step 3: Cross multiply
    368,996.80x = 553,495.20 × 336,337.60
  4. Step 4: Simplify right side
    368,996.80x = 186,161,247,179.52
  5. Step 5: Solve for x
    x = 186,161,247,179.52/368,996.80
  6. Step 6: Final answer
    x = 504,506.40

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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.