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Finding the Fourth Proportional to 268,099.96, 402,207.82 and 90,603.04

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Solution

The fourth proportional to 268,099.96, 402,207.82 and 90,603.04 is: 135,924.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,099.96 : 402,207.82 = 90,603.04 : x
  2. Step 2: Convert to fraction form
    268,099.96/402,207.82 = 90,603.04/x
  3. Step 3: Cross multiply
    268,099.96x = 402,207.82 × 90,603.04
  4. Step 4: Simplify right side
    268,099.96x = 36,441,251,203.77
  5. Step 5: Solve for x
    x = 36,441,251,203.77/268,099.96
  6. Step 6: Final answer
    x = 135,924.12

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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.