Home / 218,129.86-326,860.55-146,788.54

Finding the Fourth Proportional to 218,129.86, 326,860.55 and 146,788.54

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Solution

The fourth proportional to 218,129.86, 326,860.55 and 146,788.54 is: 219,957.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,129.86 : 326,860.55 = 146,788.54 : x
  2. Step 2: Convert to fraction form
    218,129.86/326,860.55 = 146,788.54/x
  3. Step 3: Cross multiply
    218,129.86x = 326,860.55 × 146,788.54
  4. Step 4: Simplify right side
    218,129.86x = 47,979,382,918.10
  5. Step 5: Solve for x
    x = 47,979,382,918.10/218,129.86
  6. Step 6: Final answer
    x = 219,957.89

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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.