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Finding the Fourth Proportional to 268,048.40, 402,072.60 and 263,901.20

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Solution

The fourth proportional to 268,048.40, 402,072.60 and 263,901.20 is: 395,851.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,048.40 : 402,072.60 = 263,901.20 : x
  2. Step 2: Convert to fraction form
    268,048.40/402,072.60 = 263,901.20/x
  3. Step 3: Cross multiply
    268,048.40x = 402,072.60 × 263,901.20
  4. Step 4: Simplify right side
    268,048.40x = 106,107,441,627.12
  5. Step 5: Solve for x
    x = 106,107,441,627.12/268,048.40
  6. Step 6: Final answer
    x = 395,851.80

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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.