Home / 218,128.86-326,859.05-146,787.54

Finding the Fourth Proportional to 218,128.86, 326,859.05 and 146,787.54

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Solution

The fourth proportional to 218,128.86, 326,859.05 and 146,787.54 is: 219,956.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,128.86 : 326,859.05 = 146,787.54 : x
  2. Step 2: Convert to fraction form
    218,128.86/326,859.05 = 146,787.54/x
  3. Step 3: Cross multiply
    218,128.86x = 326,859.05 × 146,787.54
  4. Step 4: Simplify right side
    218,128.86x = 47,978,835,876.24
  5. Step 5: Solve for x
    x = 47,978,835,876.24/218,128.86
  6. Step 6: Final answer
    x = 219,956.39

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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.