Home / 258,942.28-357,254.82-211,113.40

Finding the Fourth Proportional to 258,942.28, 357,254.82 and 211,113.40

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Solution

The fourth proportional to 258,942.28, 357,254.82 and 211,113.40 is: 291,266.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,942.28 : 357,254.82 = 211,113.40 : x
  2. Step 2: Convert to fraction form
    258,942.28/357,254.82 = 211,113.40/x
  3. Step 3: Cross multiply
    258,942.28x = 357,254.82 × 211,113.40
  4. Step 4: Simplify right side
    258,942.28x = 75,421,279,716.59
  5. Step 5: Solve for x
    x = 75,421,279,716.59/258,942.28
  6. Step 6: Final answer
    x = 291,266.76

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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.