Home / 391,582.14-540,370.60-230,446

Finding the Fourth Proportional to 391,582.14, 540,370.60 and 230,446

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Solution

The fourth proportional to 391,582.14, 540,370.60 and 230,446 is: 318,007.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,582.14 : 540,370.60 = 230,446 : x
  2. Step 2: Convert to fraction form
    391,582.14/540,370.60 = 230,446/x
  3. Step 3: Cross multiply
    391,582.14x = 540,370.60 × 230,446
  4. Step 4: Simplify right side
    391,582.14x = 124,526,243,287.60
  5. Step 5: Solve for x
    x = 124,526,243,287.60/391,582.14
  6. Step 6: Final answer
    x = 318,007.97

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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.