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Finding the Fourth Proportional to 268,103.37, 402,154.74 and 68,423.78

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Solution

The fourth proportional to 268,103.37, 402,154.74 and 68,423.78 is: 102,635.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,103.37 : 402,154.74 = 68,423.78 : x
  2. Step 2: Convert to fraction form
    268,103.37/402,154.74 = 68,423.78/x
  3. Step 3: Cross multiply
    268,103.37x = 402,154.74 × 68,423.78
  4. Step 4: Simplify right side
    268,103.37x = 27,516,948,461.10
  5. Step 5: Solve for x
    x = 27,516,948,461.10/268,103.37
  6. Step 6: Final answer
    x = 102,635.59

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1.5x scale

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.