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Finding the Fourth Proportional to 279,258.54, 385,378.46 and 151,935.04

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Solution

The fourth proportional to 279,258.54, 385,378.46 and 151,935.04 is: 209,671.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,258.54 : 385,378.46 = 151,935.04 : x
  2. Step 2: Convert to fraction form
    279,258.54/385,378.46 = 151,935.04/x
  3. Step 3: Cross multiply
    279,258.54x = 385,378.46 × 151,935.04
  4. Step 4: Simplify right side
    279,258.54x = 58,552,491,735.24
  5. Step 5: Solve for x
    x = 58,552,491,735.24/279,258.54
  6. Step 6: Final answer
    x = 209,671.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.