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Finding the Fourth Proportional to 259,420.33, 357,863.88 and 211,076.30

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Solution

The fourth proportional to 259,420.33, 357,863.88 and 211,076.30 is: 291,174.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,420.33 : 357,863.88 = 211,076.30 : x
  2. Step 2: Convert to fraction form
    259,420.33/357,863.88 = 211,076.30/x
  3. Step 3: Cross multiply
    259,420.33x = 357,863.88 × 211,076.30
  4. Step 4: Simplify right side
    259,420.33x = 75,536,583,694.04
  5. Step 5: Solve for x
    x = 75,536,583,694.04/259,420.33
  6. Step 6: Final answer
    x = 291,174.50

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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.