Home / 210,553.48-315,904.74-131,575.24

Finding the Fourth Proportional to 210,553.48, 315,904.74 and 131,575.24

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Solution

The fourth proportional to 210,553.48, 315,904.74 and 131,575.24 is: 197,409.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,553.48 : 315,904.74 = 131,575.24 : x
  2. Step 2: Convert to fraction form
    210,553.48/315,904.74 = 131,575.24/x
  3. Step 3: Cross multiply
    210,553.48x = 315,904.74 × 131,575.24
  4. Step 4: Simplify right side
    210,553.48x = 41,565,241,982.64
  5. Step 5: Solve for x
    x = 41,565,241,982.64/210,553.48
  6. Step 6: Final answer
    x = 197,409.43

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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.