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Finding the Fourth Proportional to 268,272.60, 402,408.90 and 268,272.60

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Solution

The fourth proportional to 268,272.60, 402,408.90 and 268,272.60 is: 402,408.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,272.60 : 402,408.90 = 268,272.60 : x
  2. Step 2: Convert to fraction form
    268,272.60/402,408.90 = 268,272.60/x
  3. Step 3: Cross multiply
    268,272.60x = 402,408.90 × 268,272.60
  4. Step 4: Simplify right side
    268,272.60x = 107,955,281,866.14
  5. Step 5: Solve for x
    x = 107,955,281,866.14/268,272.60
  6. Step 6: Final answer
    x = 402,408.90

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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.