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Finding the Fourth Proportional to 268,324.70, 402,500.84 and 68,646.81

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Solution

The fourth proportional to 268,324.70, 402,500.84 and 68,646.81 is: 102,973.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,324.70 : 402,500.84 = 68,646.81 : x
  2. Step 2: Convert to fraction form
    268,324.70/402,500.84 = 68,646.81/x
  3. Step 3: Cross multiply
    268,324.70x = 402,500.84 × 68,646.81
  4. Step 4: Simplify right side
    268,324.70x = 27,630,398,688.32
  5. Step 5: Solve for x
    x = 27,630,398,688.32/268,324.70
  6. Step 6: Final answer
    x = 102,973.74

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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.